Finding the Fourth Proportional to 361,258.52, 498,540.69 and 200,116.17

Step by Step Solution

1. Step 1: Write the proportion equation
   361,258.52 : 498,540.69 = 200,116.17 : x
2. Step 2: Convert to fraction form
   361,258.52/498,540.69 = 200,116.17/x
3. Step 3: Cross multiply
   361,258.52x = 498,540.69 × 200,116.17
4. Step 4: Simplify right side
   361,258.52x = 99,766,053,471.96
5. Step 5: Solve for x
   x = 99,766,053,471.96/361,258.52
6. Step 6: Final answer
   x = 276,162.50