Finding the Fourth Proportional to 535,500.35, 804,562.73 and 402,640.10

Step by Step Solution

1. Step 1: Write the proportion equation
   535,500.35 : 804,562.73 = 402,640.10 : x
2. Step 2: Convert to fraction form
   535,500.35/804,562.73 = 402,640.10/x
3. Step 3: Cross multiply
   535,500.35x = 804,562.73 × 402,640.10
4. Step 4: Simplify right side
   535,500.35x = 323,949,216,050.27
5. Step 5: Solve for x
   x = 323,949,216,050.27/535,500.35
6. Step 6: Final answer
   x = 604,946.79