Finding the Fourth Proportional to 22,567.52, 31,142.30 and 12,495.77

Step by Step Solution

1. Step 1: Write the proportion equation
   22,567.52 : 31,142.30 = 12,495.77 : x
2. Step 2: Convert to fraction form
   22,567.52/31,142.30 = 12,495.77/x
3. Step 3: Cross multiply
   22,567.52x = 31,142.30 × 12,495.77
4. Step 4: Simplify right side
   22,567.52x = 389,146,799.88
5. Step 5: Solve for x
   x = 389,146,799.88/22,567.52
6. Step 6: Final answer
   x = 17,243.67