Finding the Fourth Proportional to 516,311.98, 774,167.25 and 200,399.83

Step by Step Solution

1. Step 1: Write the proportion equation
   516,311.98 : 774,167.25 = 200,399.83 : x
2. Step 2: Convert to fraction form
   516,311.98/774,167.25 = 200,399.83/x
3. Step 3: Cross multiply
   516,311.98x = 774,167.25 × 200,399.83
4. Step 4: Simplify right side
   516,311.98x = 155,142,985,291.57
5. Step 5: Solve for x
   x = 155,142,985,291.57/516,311.98
6. Step 6: Final answer
   x = 300,483.02