Finding the Fourth Proportional to 81,401.12, 122,003.25 and 41,936.70

Step by Step Solution

1. Step 1: Write the proportion equation
   81,401.12 : 122,003.25 = 41,936.70 : x
2. Step 2: Convert to fraction form
   81,401.12/122,003.25 = 41,936.70/x
3. Step 3: Cross multiply
   81,401.12x = 122,003.25 × 41,936.70
4. Step 4: Simplify right side
   81,401.12x = 5,116,413,694.28
5. Step 5: Solve for x
   x = 5,116,413,694.28/81,401.12
6. Step 6: Final answer
   x = 62,854.34