Finding the Fourth Proportional to 252,387.11, 378,498.72 and 83,862.18

Step by Step Solution

1. Step 1: Write the proportion equation
   252,387.11 : 378,498.72 = 83,862.18 : x
2. Step 2: Convert to fraction form
   252,387.11/378,498.72 = 83,862.18/x
3. Step 3: Cross multiply
   252,387.11x = 378,498.72 × 83,862.18
4. Step 4: Simplify right side
   252,387.11x = 31,741,728,100.89
5. Step 5: Solve for x
   x = 31,741,728,100.89/252,387.11
6. Step 6: Final answer
   x = 125,766.04