Finding the Fourth Proportional to 425,142, 586,722.56 and 234,155.32

Step by Step Solution

1. Step 1: Write the proportion equation
   425,142 : 586,722.56 = 234,155.32 : x
2. Step 2: Convert to fraction form
   425,142/586,722.56 = 234,155.32/x
3. Step 3: Cross multiply
   425,142x = 586,722.56 × 234,155.32
4. Step 4: Simplify right side
   425,142x = 137,384,208,788.02
5. Step 5: Solve for x
   x = 137,384,208,788.02/425,142
6. Step 6: Final answer
   x = 323,148.99