Using a large punch bowl (or other large bowl), mix together the fruit punch, ginger ale, and pineapple juice.
Add scoops of sherbet into the punch bowl using an ice cream scoop.
After just a couple of minutes, the sherbet will start to melt. Using a large spoon or whisk, mix until the sherbet is completely incorporated into the liquid.
Add some ice and serve!
Notes
We recommend that you do not make this recipe ahead of time. It can lose some of the fizziness of the soda.