Finding the Fourth Proportional to 6,881.62, 10,320.24 and 2,722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,881.62 : 10,320.24 = 2,722.72 : x
2. Step 2: Convert to fraction form
   6,881.62/10,320.24 = 2,722.72/x
3. Step 3: Cross multiply
   6,881.62x = 10,320.24 × 2,722.72
4. Step 4: Simplify right side
   6,881.62x = 28,099,123.85
5. Step 5: Solve for x
   x = 28,099,123.85/6,881.62
6. Step 6: Final answer
   x = 4,083.21