Finding the Fourth Proportional to 296,498.37, 444,790.89 and 86,108.97

Step by Step Solution

1. Step 1: Write the proportion equation
   296,498.37 : 444,790.89 = 86,108.97 : x
2. Step 2: Convert to fraction form
   296,498.37/444,790.89 = 86,108.97/x
3. Step 3: Cross multiply
   296,498.37x = 444,790.89 × 86,108.97
4. Step 4: Simplify right side
   296,498.37x = 38,300,485,403.28
5. Step 5: Solve for x
   x = 38,300,485,403.28/296,498.37
6. Step 6: Final answer
   x = 129,176.04