Finding the Fourth Proportional to 22,542.50, 31,110.10 and 12,606.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,542.50 : 31,110.10 = 12,606.50 : x
2. Step 2: Convert to fraction form
   22,542.50/31,110.10 = 12,606.50/x
3. Step 3: Cross multiply
   22,542.50x = 31,110.10 × 12,606.50
4. Step 4: Simplify right side
   22,542.50x = 392,189,475.65
5. Step 5: Solve for x
   x = 392,189,475.65/22,542.50
6. Step 6: Final answer
   x = 17,397.78