Finding the Fourth Proportional to 82,460.47, 113,744.82 and 72,869.58

Step by Step Solution

1. Step 1: Write the proportion equation
   82,460.47 : 113,744.82 = 72,869.58 : x
2. Step 2: Convert to fraction form
   82,460.47/113,744.82 = 72,869.58/x
3. Step 3: Cross multiply
   82,460.47x = 113,744.82 × 72,869.58
4. Step 4: Simplify right side
   82,460.47x = 8,288,536,691.85
5. Step 5: Solve for x
   x = 8,288,536,691.85/82,460.47
6. Step 6: Final answer
   x = 100,515.27