Finding the Fourth Proportional to 22,545.09, 31,114.17 and 13,113

Step by Step Solution

1. Step 1: Write the proportion equation
   22,545.09 : 31,114.17 = 13,113 : x
2. Step 2: Convert to fraction form
   22,545.09/31,114.17 = 13,113/x
3. Step 3: Cross multiply
   22,545.09x = 31,114.17 × 13,113
4. Step 4: Simplify right side
   22,545.09x = 408,000,111.21
5. Step 5: Solve for x
   x = 408,000,111.21/22,545.09
6. Step 6: Final answer
   x = 18,097.07