Finding the Fourth Proportional to 665,039, 917,753.82 and 363,233.72

Step by Step Solution

1. Step 1: Write the proportion equation
   665,039 : 917,753.82 = 363,233.72 : x
2. Step 2: Convert to fraction form
   665,039/917,753.82 = 363,233.72/x
3. Step 3: Cross multiply
   665,039x = 917,753.82 × 363,233.72
4. Step 4: Simplify right side
   665,039x = 333,359,134,082.81
5. Step 5: Solve for x
   x = 333,359,134,082.81/665,039
6. Step 6: Final answer
   x = 501,262.53