Finding the Fourth Proportional to 22,563.77, 31,138.43 and 13,132.53

Step by Step Solution

1. Step 1: Write the proportion equation
   22,563.77 : 31,138.43 = 13,132.53 : x
2. Step 2: Convert to fraction form
   22,563.77/31,138.43 = 13,132.53/x
3. Step 3: Cross multiply
   22,563.77x = 31,138.43 × 13,132.53
4. Step 4: Simplify right side
   22,563.77x = 408,926,300.47
5. Step 5: Solve for x
   x = 408,926,300.47/22,563.77
6. Step 6: Final answer
   x = 18,123.14