Finding the Fourth Proportional to 22,577.27, 31,156.88 and 12,505.86

Step by Step Solution

1. Step 1: Write the proportion equation
   22,577.27 : 31,156.88 = 12,505.86 : x
2. Step 2: Convert to fraction form
   22,577.27/31,156.88 = 12,505.86/x
3. Step 3: Cross multiply
   22,577.27x = 31,156.88 × 12,505.86
4. Step 4: Simplify right side
   22,577.27x = 389,643,516.79
5. Step 5: Solve for x
   x = 389,643,516.79/22,577.27
6. Step 6: Final answer
   x = 17,258.22