Finding the Fourth Proportional to 425,011.50, 586,502.10 and 234,019.98

Step by Step Solution

1. Step 1: Write the proportion equation
   425,011.50 : 586,502.10 = 234,019.98 : x
2. Step 2: Convert to fraction form
   425,011.50/586,502.10 = 234,019.98/x
3. Step 3: Cross multiply
   425,011.50x = 586,502.10 × 234,019.98
4. Step 4: Simplify right side
   425,011.50x = 137,253,209,711.96
5. Step 5: Solve for x
   x = 137,253,209,711.96/425,011.50
6. Step 6: Final answer
   x = 322,939.99