Finding the Fourth Proportional to 389,809.31, 584,713.98 and 94,321.31

Step by Step Solution

1. Step 1: Write the proportion equation
   389,809.31 : 584,713.98 = 94,321.31 : x
2. Step 2: Convert to fraction form
   389,809.31/584,713.98 = 94,321.31/x
3. Step 3: Cross multiply
   389,809.31x = 584,713.98 × 94,321.31
4. Step 4: Simplify right side
   389,809.31x = 55,150,988,568.91
5. Step 5: Solve for x
   x = 55,150,988,568.91/389,809.31
6. Step 6: Final answer
   x = 141,481.97