Finding the Fourth Proportional to 80,943.56, 121,386.17 and 34,200.08

Step by Step Solution

1. Step 1: Write the proportion equation
   80,943.56 : 121,386.17 = 34,200.08 : x
2. Step 2: Convert to fraction form
   80,943.56/121,386.17 = 34,200.08/x
3. Step 3: Cross multiply
   80,943.56x = 121,386.17 × 34,200.08
4. Step 4: Simplify right side
   80,943.56x = 4,151,416,724.89
5. Step 5: Solve for x
   x = 4,151,416,724.89/80,943.56
6. Step 6: Final answer
   x = 51,287.80