Finding the Fourth Proportional to 4,986.72, 6,876.72 and 3,306.24

Step by Step Solution

1. Step 1: Write the proportion equation
   4,986.72 : 6,876.72 = 3,306.24 : x
2. Step 2: Convert to fraction form
   4,986.72/6,876.72 = 3,306.24/x
3. Step 3: Cross multiply
   4,986.72x = 6,876.72 × 3,306.24
4. Step 4: Simplify right side
   4,986.72x = 22,736,086.73
5. Step 5: Solve for x
   x = 22,736,086.73/4,986.72
6. Step 6: Final answer
   x = 4,559.33