Finding the Fourth Proportional to 82,511.92, 113,662.38 and 70,372.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,511.92 : 113,662.38 = 70,372.72 : x
2. Step 2: Convert to fraction form
   82,511.92/113,662.38 = 70,372.72/x
3. Step 3: Cross multiply
   82,511.92x = 113,662.38 × 70,372.72
4. Step 4: Simplify right side
   82,511.92x = 7,998,730,842.27
5. Step 5: Solve for x
   x = 7,998,730,842.27/82,511.92
6. Step 6: Final answer
   x = 96,940.31