Finding the Fourth Proportional to 158,828.50, 219,183.33 and 91,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,828.50 : 219,183.33 = 91,760.50 : x
2. Step 2: Convert to fraction form
   158,828.50/219,183.33 = 91,760.50/x
3. Step 3: Cross multiply
   158,828.50x = 219,183.33 × 91,760.50
4. Step 4: Simplify right side
   158,828.50x = 20,112,371,952.47
5. Step 5: Solve for x
   x = 20,112,371,952.47/158,828.50
6. Step 6: Final answer
   x = 126,629.49