Finding the Fourth Proportional to 22,571.89, 31,139.37 and 13,614.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,571.89 : 31,139.37 = 13,614.42 : x
2. Step 2: Convert to fraction form
   22,571.89/31,139.37 = 13,614.42/x
3. Step 3: Cross multiply
   22,571.89x = 31,139.37 × 13,614.42
4. Step 4: Simplify right side
   22,571.89x = 423,944,461.72
5. Step 5: Solve for x
   x = 423,944,461.72/22,571.89
6. Step 6: Final answer
   x = 18,781.97