Finding the Fourth Proportional to 22,715.30, 31,345.89 and 13,153.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,715.30 : 31,345.89 = 13,153.52 : x
2. Step 2: Convert to fraction form
   22,715.30/31,345.89 = 13,153.52/x
3. Step 3: Cross multiply
   22,715.30x = 31,345.89 × 13,153.52
4. Step 4: Simplify right side
   22,715.30x = 412,308,791.03
5. Step 5: Solve for x
   x = 412,308,791.03/22,715.30
6. Step 6: Final answer
   x = 18,151.15