Finding the Fourth Proportional to 443,392.55, 665,155.24 and 143,773.55

Step by Step Solution

1. Step 1: Write the proportion equation
   443,392.55 : 665,155.24 = 143,773.55 : x
2. Step 2: Convert to fraction form
   443,392.55/665,155.24 = 143,773.55/x
3. Step 3: Cross multiply
   443,392.55x = 665,155.24 × 143,773.55
4. Step 4: Simplify right side
   443,392.55x = 95,631,726,470.69
5. Step 5: Solve for x
   x = 95,631,726,470.69/443,392.55
6. Step 6: Final answer
   x = 215,681.85