Finding the Fourth Proportional to 71,116.92, 98,067.69 and 61,078.56

Step by Step Solution

1. Step 1: Write the proportion equation
   71,116.92 : 98,067.69 = 61,078.56 : x
2. Step 2: Convert to fraction form
   71,116.92/98,067.69 = 61,078.56/x
3. Step 3: Cross multiply
   71,116.92x = 98,067.69 × 61,078.56
4. Step 4: Simplify right side
   71,116.92x = 5,989,833,287.73
5. Step 5: Solve for x
   x = 5,989,833,287.73/71,116.92
6. Step 6: Final answer
   x = 84,225.15