This one is a challenge!  How big a can of applesauce?Bottle of ginger ale?  Based on other similar recipes – the quantities in ( ) are my best bet.  And I found just what I needed on Mid-Century Menu.
“Applesauce 7-Up Salad – The Fourth Place Best Recipe Winner In The Glistening And Jiggly Contest by RetroRuth,| Jul 18, 2012 Best & Worst, Contests, Hello Jell-O.  This is a very sweet salad, with all the sugar from the Jell-O, the applesauce AND the soda, so do yourself a favor and get unsweetened or natural applesauce. This has a refreshing taste and, if you don’t overmix it, the carbonation from the soda makes a fun texture in the finished salad.

Ingredients: 

• 1 can applesauce
• 1 pack lime Jello
• 1 tsp lemon juice
• 1 Tab sugar
• 1 small bottle ginger ale

Directions:

1. Heat applesauce.
2. Add lime jello and sugar.
3. Dissolve.
4. Cool.
5. Add lemon juice and ginger ale.
6. Chill.

Serves:   4

Source:  White Trash Cook Book II – Quiltins

This may help

Applesauce 7-Up Salad
Ingredients
1.5 cups applesauce
1 small box lime Jello
1 cup chilled 7-Up
Instructions
1. Bring applesauce to a boil.
2. Stir in Jello.
3. Cool to room temperature. Stir in 7-Up.
4. Pour into a Jello mold. Chill.
Recipe by The Mid-Century Menu