Drain pineapple, reserving juice. Combine the pineapple, bananas, grapes, oranges and apples in a large bowl; set aside.
In a small saucepan, combine sugar and cornstarch. Add the orange juice, lemon juice and reserved pineapple juice; stir until smooth. Bring to a boil; reduce heat. Cook and stir for 2 minutes. Pour over fruit; mix gently. Cover and refrigerate until serving. Makes 1 0 servings. Enjoy!