Finding the Fourth Proportional to 22,636.97, 31,238.42 and 12,565.38

Step by Step Solution

1. Step 1: Write the proportion equation
   22,636.97 : 31,238.42 = 12,565.38 : x
2. Step 2: Convert to fraction form
   22,636.97/31,238.42 = 12,565.38/x
3. Step 3: Cross multiply
   22,636.97x = 31,238.42 × 12,565.38
4. Step 4: Simplify right side
   22,636.97x = 392,522,555.07
5. Step 5: Solve for x
   x = 392,522,555.07/22,636.97
6. Step 6: Final answer
   x = 17,339.89