Finding the Fourth Proportional to 711,631.88, 981,891.42 and 425,096

Step by Step Solution

1. Step 1: Write the proportion equation
   711,631.88 : 981,891.42 = 425,096 : x
2. Step 2: Convert to fraction form
   711,631.88/981,891.42 = 425,096/x
3. Step 3: Cross multiply
   711,631.88x = 981,891.42 × 425,096
4. Step 4: Simplify right side
   711,631.88x = 417,398,115,076.32
5. Step 5: Solve for x
   x = 417,398,115,076.32/711,631.88
6. Step 6: Final answer
   x = 586,536.56