Finding the Fourth Proportional to 84,401.66, 126,691.71 and 82,495.72

Step by Step Solution

1. Step 1: Write the proportion equation
   84,401.66 : 126,691.71 = 82,495.72 : x
2. Step 2: Convert to fraction form
   84,401.66/126,691.71 = 82,495.72/x
3. Step 3: Cross multiply
   84,401.66x = 126,691.71 × 82,495.72
4. Step 4: Simplify right side
   84,401.66x = 10,451,523,834.48
5. Step 5: Solve for x
   x = 10,451,523,834.48/84,401.66
6. Step 6: Final answer
   x = 123,830.79