Finding the Fourth Proportional to 6,278.72, 8,664.72 and 3,446.36

Step by Step Solution

1. Step 1: Write the proportion equation
   6,278.72 : 8,664.72 = 3,446.36 : x
2. Step 2: Convert to fraction form
   6,278.72/8,664.72 = 3,446.36/x
3. Step 3: Cross multiply
   6,278.72x = 8,664.72 × 3,446.36
4. Step 4: Simplify right side
   6,278.72x = 29,861,744.42
5. Step 5: Solve for x
   x = 29,861,744.42/6,278.72
6. Step 6: Final answer
   x = 4,756.02