Finding the Fourth Proportional to 22,637.34, 31,238.05 and 12,565.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,637.34 : 31,238.05 = 12,565.29 : x
2. Step 2: Convert to fraction form
   22,637.34/31,238.05 = 12,565.29/x
3. Step 3: Cross multiply
   22,637.34x = 31,238.05 × 12,565.29
4. Step 4: Simplify right side
   22,637.34x = 392,515,157.28
5. Step 5: Solve for x
   x = 392,515,157.28/22,637.34
6. Step 6: Final answer
   x = 17,339.28