Finding the Fourth Proportional to 22,559.59, 31,137.24 and 13,133.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,559.59 : 31,137.24 = 13,133.62 : x
2. Step 2: Convert to fraction form
   22,559.59/31,137.24 = 13,133.62/x
3. Step 3: Cross multiply
   22,559.59x = 31,137.24 × 13,133.62
4. Step 4: Simplify right side
   22,559.59x = 408,944,678.01
5. Step 5: Solve for x
   x = 408,944,678.01/22,559.59
6. Step 6: Final answer
   x = 18,127.31