Finding the Fourth Proportional to 22,521.50, 31,086.96 and 14,138

Step by Step Solution

1. Step 1: Write the proportion equation
   22,521.50 : 31,086.96 = 14,138 : x
2. Step 2: Convert to fraction form
   22,521.50/31,086.96 = 14,138/x
3. Step 3: Cross multiply
   22,521.50x = 31,086.96 × 14,138
4. Step 4: Simplify right side
   22,521.50x = 439,507,440.48
5. Step 5: Solve for x
   x = 439,507,440.48/22,521.50
6. Step 6: Final answer
   x = 19,515.02