Finding the Fourth Proportional to 80,128.16, 120,147.85 and 32,776.49

Step by Step Solution

1. Step 1: Write the proportion equation
   80,128.16 : 120,147.85 = 32,776.49 : x
2. Step 2: Convert to fraction form
   80,128.16/120,147.85 = 32,776.49/x
3. Step 3: Cross multiply
   80,128.16x = 120,147.85 × 32,776.49
4. Step 4: Simplify right side
   80,128.16x = 3,938,025,022.47
5. Step 5: Solve for x
   x = 3,938,025,022.47/80,128.16
6. Step 6: Final answer
   x = 49,146.58