Finding the Fourth Proportional to 82,458.72, 113,742.41 and 72,867.83

Step by Step Solution

1. Step 1: Write the proportion equation
   82,458.72 : 113,742.41 = 72,867.83 : x
2. Step 2: Convert to fraction form
   82,458.72/113,742.41 = 72,867.83/x
3. Step 3: Cross multiply
   82,458.72x = 113,742.41 × 72,867.83
4. Step 4: Simplify right side
   82,458.72x = 8,288,161,662.62
5. Step 5: Solve for x
   x = 8,288,161,662.62/82,458.72
6. Step 6: Final answer
   x = 100,512.86