Finding the Fourth Proportional to 126,882.43, 175,103.55 and 72,449.37

Step by Step Solution

1. Step 1: Write the proportion equation
   126,882.43 : 175,103.55 = 72,449.37 : x
2. Step 2: Convert to fraction form
   126,882.43/175,103.55 = 72,449.37/x
3. Step 3: Cross multiply
   126,882.43x = 175,103.55 × 72,449.37
4. Step 4: Simplify right side
   126,882.43x = 12,686,141,882.26
5. Step 5: Solve for x
   x = 12,686,141,882.26/126,882.43
6. Step 6: Final answer
   x = 99,983.44