Finding the Fourth Proportional to 72,868.05, 101,016.50 and 68,876.79

Step by Step Solution

1. Step 1: Write the proportion equation
   72,868.05 : 101,016.50 = 68,876.79 : x
2. Step 2: Convert to fraction form
   72,868.05/101,016.50 = 68,876.79/x
3. Step 3: Cross multiply
   72,868.05x = 101,016.50 × 68,876.79
4. Step 4: Simplify right side
   72,868.05x = 6,957,691,912.65
5. Step 5: Solve for x
   x = 6,957,691,912.65/72,868.05
6. Step 6: Final answer
   x = 95,483.44