Finding the Fourth Proportional to 22,542.66, 31,108.59 and 12,470.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,542.66 : 31,108.59 = 12,470.31 : x
2. Step 2: Convert to fraction form
   22,542.66/31,108.59 = 12,470.31/x
3. Step 3: Cross multiply
   22,542.66x = 31,108.59 × 12,470.31
4. Step 4: Simplify right side
   22,542.66x = 387,933,760.96
5. Step 5: Solve for x
   x = 387,933,760.96/22,542.66
6. Step 6: Final answer
   x = 17,208.87