Finding the Fourth Proportional to 22,542.37, 31,105.71 and 12,469.43

Step by Step Solution

1. Step 1: Write the proportion equation
   22,542.37 : 31,105.71 = 12,469.43 : x
2. Step 2: Convert to fraction form
   22,542.37/31,105.71 = 12,469.43/x
3. Step 3: Cross multiply
   22,542.37x = 31,105.71 × 12,469.43
4. Step 4: Simplify right side
   22,542.37x = 387,870,551.21
5. Step 5: Solve for x
   x = 387,870,551.21/22,542.37
6. Step 6: Final answer
   x = 17,206.29