Find the Maximum Number in a List

By Amanda Gearhart, Emily Sullivan, David York, August Mapp, Jenny Terry, Brian Luerman, Shannon Sheehy, Tonia Nolden, Dan Collins, Jared Mueller, Rekkai Steed, Blake Herbert, Ryan Alvey, Alli Rippy, Jeff Dillon, Charles Kayser, Rama Kattunga, Brett Fraley, Kalee Howard, Aaron Marks, Christina Porter, Sebastian Frohm, and Danny Morton