Finding the Fourth Proportional to 22,663.24, 31,275.54 and 13,711.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,663.24 : 31,275.54 = 13,711.72 : x
2. Step 2: Convert to fraction form
   22,663.24/31,275.54 = 13,711.72/x
3. Step 3: Cross multiply
   22,663.24x = 31,275.54 × 13,711.72
4. Step 4: Simplify right side
   22,663.24x = 428,841,447.33
5. Step 5: Solve for x
   x = 428,841,447.33/22,663.24
6. Step 6: Final answer
   x = 18,922.34