Finding the Fourth Proportional to 425,403.59, 587,069.52 and 234,429.35

Step by Step Solution

1. Step 1: Write the proportion equation
   425,403.59 : 587,069.52 = 234,429.35 : x
2. Step 2: Convert to fraction form
   425,403.59/587,069.52 = 234,429.35/x
3. Step 3: Cross multiply
   425,403.59x = 587,069.52 × 234,429.35
4. Step 4: Simplify right side
   425,403.59x = 137,626,325,978.41
5. Step 5: Solve for x
   x = 137,626,325,978.41/425,403.59
6. Step 6: Final answer
   x = 323,519.43