Finding the Fourth Proportional to 23,111.31, 31,886.16 and 18,250.61

Step by Step Solution

1. Step 1: Write the proportion equation
   23,111.31 : 31,886.16 = 18,250.61 : x
2. Step 2: Convert to fraction form
   23,111.31/31,886.16 = 18,250.61/x
3. Step 3: Cross multiply
   23,111.31x = 31,886.16 × 18,250.61
4. Step 4: Simplify right side
   23,111.31x = 581,941,711.13
5. Step 5: Solve for x
   x = 581,941,711.13/23,111.31
6. Step 6: Final answer
   x = 25,179.95