Finding the Fourth Proportional to 82,921.50, 124,401.69 and 27,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,921.50 : 124,401.69 = 27,517.50 : x
2. Step 2: Convert to fraction form
   82,921.50/124,401.69 = 27,517.50/x
3. Step 3: Cross multiply
   82,921.50x = 124,401.69 × 27,517.50
4. Step 4: Simplify right side
   82,921.50x = 3,423,223,504.58
5. Step 5: Solve for x
   x = 3,423,223,504.58/82,921.50
6. Step 6: Final answer
   x = 41,282.70