Finding the Fourth Proportional to 81,085.91, 121,628.85 and 41,617.85

Step by Step Solution

1. Step 1: Write the proportion equation
   81,085.91 : 121,628.85 = 41,617.85 : x
2. Step 2: Convert to fraction form
   81,085.91/121,628.85 = 41,617.85/x
3. Step 3: Cross multiply
   81,085.91x = 121,628.85 × 41,617.85
4. Step 4: Simplify right side
   81,085.91x = 5,061,930,626.83
5. Step 5: Solve for x
   x = 5,061,930,626.83/81,085.91
6. Step 6: Final answer
   x = 62,426.76