Finding the Fourth Proportional to 22,641.12, 31,244.67 and 12,569.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,641.12 : 31,244.67 = 12,569.31 : x
2. Step 2: Convert to fraction form
   22,641.12/31,244.67 = 12,569.31/x
3. Step 3: Cross multiply
   22,641.12x = 31,244.67 × 12,569.31
4. Step 4: Simplify right side
   22,641.12x = 392,723,943.08
5. Step 5: Solve for x
   x = 392,723,943.08/22,641.12
6. Step 6: Final answer
   x = 17,345.61