Pina Colada Party Cake

• 18 1/4 ozs fat cake mix (reduced white)
• 16 ozs fat vanilla frosting (reduced)
• 4 egg whites (whole slightly beaten)
• 1 frosting
• 240 ml pineapple juice
• 180 ml water
• 100 gr granulated sugar
• 60 gr coconut (toasted)
• 16 ml olive oil
• 7 gr rum extract