Finding the Fourth Proportional to 22,687.29, 31,301.24 and 13,731.93

Step by Step Solution

1. Step 1: Write the proportion equation
   22,687.29 : 31,301.24 = 13,731.93 : x
2. Step 2: Convert to fraction form
   22,687.29/31,301.24 = 13,731.93/x
3. Step 3: Cross multiply
   22,687.29x = 31,301.24 × 13,731.93
4. Step 4: Simplify right side
   22,687.29x = 429,826,367.93
5. Step 5: Solve for x
   x = 429,826,367.93/22,687.29
6. Step 6: Final answer
   x = 18,945.69