Finding the Fourth Proportional to 22,513.16, 31,068.24 and 12,441.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,513.16 : 31,068.24 = 12,441.60 : x
2. Step 2: Convert to fraction form
   22,513.16/31,068.24 = 12,441.60/x
3. Step 3: Cross multiply
   22,513.16x = 31,068.24 × 12,441.60
4. Step 4: Simplify right side
   22,513.16x = 386,538,614.78
5. Step 5: Solve for x
   x = 386,538,614.78/22,513.16
6. Step 6: Final answer
   x = 17,169.45