Finding the Fourth Proportional to 22,577.32, 31,156.38 and 12,505.73

Step by Step Solution

1. Step 1: Write the proportion equation
   22,577.32 : 31,156.38 = 12,505.73 : x
2. Step 2: Convert to fraction form
   22,577.32/31,156.38 = 12,505.73/x
3. Step 3: Cross multiply
   22,577.32x = 31,156.38 × 12,505.73
4. Step 4: Simplify right side
   22,577.32x = 389,633,276.06
5. Step 5: Solve for x
   x = 389,633,276.06/22,577.32
6. Step 6: Final answer
   x = 17,257.73