Finding the Fourth Proportional to 361,168.88, 498,414.71 and 200,020.55

Step by Step Solution

1. Step 1: Write the proportion equation
   361,168.88 : 498,414.71 = 200,020.55 : x
2. Step 2: Convert to fraction form
   361,168.88/498,414.71 = 200,020.55/x
3. Step 3: Cross multiply
   361,168.88x = 498,414.71 × 200,020.55
4. Step 4: Simplify right side
   361,168.88x = 99,693,182,430.27
5. Step 5: Solve for x
   x = 99,693,182,430.27/361,168.88
6. Step 6: Final answer
   x = 276,029.27