Finding the Fourth Proportional to 17,806.71, 24,593.43 and 12,131.61

Step by Step Solution

1. Step 1: Write the proportion equation
   17,806.71 : 24,593.43 = 12,131.61 : x
2. Step 2: Convert to fraction form
   17,806.71/24,593.43 = 12,131.61/x
3. Step 3: Cross multiply
   17,806.71x = 24,593.43 × 12,131.61
4. Step 4: Simplify right side
   17,806.71x = 298,357,901.32
5. Step 5: Solve for x
   x = 298,357,901.32/17,806.71
6. Step 6: Final answer
   x = 16,755.36