Finding the Fourth Proportional to 22,687.14, 31,300.77 and 13,731.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,687.14 : 31,300.77 = 13,731.24 : x
2. Step 2: Convert to fraction form
   22,687.14/31,300.77 = 13,731.24/x
3. Step 3: Cross multiply
   22,687.14x = 31,300.77 × 13,731.24
4. Step 4: Simplify right side
   22,687.14x = 429,798,385.05
5. Step 5: Solve for x
   x = 429,798,385.05/22,687.14
6. Step 6: Final answer
   x = 18,944.58