Finding the Fourth Proportional to 22,577.57, 31,156.72 and 12,505.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,577.57 : 31,156.72 = 12,505.98 : x
2. Step 2: Convert to fraction form
   22,577.57/31,156.72 = 12,505.98/x
3. Step 3: Cross multiply
   22,577.57x = 31,156.72 × 12,505.98
4. Step 4: Simplify right side
   22,577.57x = 389,645,254.66
5. Step 5: Solve for x
   x = 389,645,254.66/22,577.57
6. Step 6: Final answer
   x = 17,258.07