Finding the Fourth Proportional to 218,105.86, 327,182.25 and 91,758.97

Step by Step Solution

1. Step 1: Write the proportion equation
   218,105.86 : 327,182.25 = 91,758.97 : x
2. Step 2: Convert to fraction form
   218,105.86/327,182.25 = 91,758.97/x
3. Step 3: Cross multiply
   218,105.86x = 327,182.25 × 91,758.97
4. Step 4: Simplify right side
   218,105.86x = 30,021,906,262.28
5. Step 5: Solve for x
   x = 30,021,906,262.28/218,105.86
6. Step 6: Final answer
   x = 137,648.32