Finding the Fourth Proportional to 239,601.06, 359,443.98 and 81,792.72

Step by Step Solution

1. Step 1: Write the proportion equation
   239,601.06 : 359,443.98 = 81,792.72 : x
2. Step 2: Convert to fraction form
   239,601.06/359,443.98 = 81,792.72/x
3. Step 3: Cross multiply
   239,601.06x = 359,443.98 × 81,792.72
4. Step 4: Simplify right side
   239,601.06x = 29,399,900,811.83
5. Step 5: Solve for x
   x = 29,399,900,811.83/239,601.06
6. Step 6: Final answer
   x = 122,703.55