Finding the Fourth Proportional to 22,577.28, 31,156.91 and 12,505.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,577.28 : 31,156.91 = 12,505.92 : x
2. Step 2: Convert to fraction form
   22,577.28/31,156.91 = 12,505.92/x
3. Step 3: Cross multiply
   22,577.28x = 31,156.91 × 12,505.92
4. Step 4: Simplify right side
   22,577.28x = 389,645,761.38
5. Step 5: Solve for x
   x = 389,645,761.38/22,577.28
6. Step 6: Final answer
   x = 17,258.31