Finding the Fourth Proportional to 72,016.34, 99,382.56 and 39,750.97

Step by Step Solution

1. Step 1: Write the proportion equation
   72,016.34 : 99,382.56 = 39,750.97 : x
2. Step 2: Convert to fraction form
   72,016.34/99,382.56 = 39,750.97/x
3. Step 3: Cross multiply
   72,016.34x = 99,382.56 × 39,750.97
4. Step 4: Simplify right side
   72,016.34x = 3,950,553,595.88
5. Step 5: Solve for x
   x = 3,950,553,595.88/72,016.34
6. Step 6: Final answer
   x = 54,856.35