Finding the Fourth Proportional to 80,648.78, 120,883.53 and 60,863.18

Step by Step Solution

1. Step 1: Write the proportion equation
   80,648.78 : 120,883.53 = 60,863.18 : x
2. Step 2: Convert to fraction form
   80,648.78/120,883.53 = 60,863.18/x
3. Step 3: Cross multiply
   80,648.78x = 120,883.53 × 60,863.18
4. Step 4: Simplify right side
   80,648.78x = 7,357,356,045.43
5. Step 5: Solve for x
   x = 7,357,356,045.43/80,648.78
6. Step 6: Final answer
   x = 91,227.12