Finding the Fourth Proportional to 568,103.59, 784,443.59 and 542,417.28

Step by Step Solution

1. Step 1: Write the proportion equation
   568,103.59 : 784,443.59 = 542,417.28 : x
2. Step 2: Convert to fraction form
   568,103.59/784,443.59 = 542,417.28/x
3. Step 3: Cross multiply
   568,103.59x = 784,443.59 × 542,417.28
4. Step 4: Simplify right side
   568,103.59x = 425,495,758,401.24
5. Step 5: Solve for x
   x = 425,495,758,401.24/568,103.59
6. Step 6: Final answer
   x = 748,975.65