Finding the Fourth Proportional to 104,081.50, 155,958.73 and 80,446.91

Step by Step Solution

1. Step 1: Write the proportion equation
   104,081.50 : 155,958.73 = 80,446.91 : x
2. Step 2: Convert to fraction form
   104,081.50/155,958.73 = 80,446.91/x
3. Step 3: Cross multiply
   104,081.50x = 155,958.73 × 80,446.91
4. Step 4: Simplify right side
   104,081.50x = 12,546,398,104.80
5. Step 5: Solve for x
   x = 12,546,398,104.80/104,081.50
6. Step 6: Final answer
   x = 120,543.98