Finding the Fourth Proportional to 80,906.78, 121,340.72 and 41,443.58

Step by Step Solution

1. Step 1: Write the proportion equation
   80,906.78 : 121,340.72 = 41,443.58 : x
2. Step 2: Convert to fraction form
   80,906.78/121,340.72 = 41,443.58/x
3. Step 3: Cross multiply
   80,906.78x = 121,340.72 × 41,443.58
4. Step 4: Simplify right side
   80,906.78x = 5,028,793,022.66
5. Step 5: Solve for x
   x = 5,028,793,022.66/80,906.78
6. Step 6: Final answer
   x = 62,155.40