Finding the Fourth Proportional to 82,832.10, 124,248.15 and 72,464.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,832.10 : 124,248.15 = 72,464.10 : x
2. Step 2: Convert to fraction form
   82,832.10/124,248.15 = 72,464.10/x
3. Step 3: Cross multiply
   82,832.10x = 124,248.15 × 72,464.10
4. Step 4: Simplify right side
   82,832.10x = 9,003,530,366.42
5. Step 5: Solve for x
   x = 9,003,530,366.42/82,832.10
6. Step 6: Final answer
   x = 108,696.15