Finding the Fourth Proportional to 16,093.60, 24,111.60 and 13,616.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,093.60 : 24,111.60 = 13,616.80 : x
2. Step 2: Convert to fraction form
   16,093.60/24,111.60 = 13,616.80/x
3. Step 3: Cross multiply
   16,093.60x = 24,111.60 × 13,616.80
4. Step 4: Simplify right side
   16,093.60x = 328,322,834.88
5. Step 5: Solve for x
   x = 328,322,834.88/16,093.60
6. Step 6: Final answer
   x = 20,400.83