Finding the Fourth Proportional to 539,019.32, 743,850.18 and 297,308.43

Step by Step Solution

1. Step 1: Write the proportion equation
   539,019.32 : 743,850.18 = 297,308.43 : x
2. Step 2: Convert to fraction form
   539,019.32/743,850.18 = 297,308.43/x
3. Step 3: Cross multiply
   539,019.32x = 743,850.18 × 297,308.43
4. Step 4: Simplify right side
   539,019.32x = 221,152,929,171.02
5. Step 5: Solve for x
   x = 221,152,929,171.02/539,019.32
6. Step 6: Final answer
   x = 410,287.58