Finding the Fourth Proportional to 6,280.24, 8,654.40 and 5,676.16

Step by Step Solution

1. Step 1: Write the proportion equation
   6,280.24 : 8,654.40 = 5,676.16 : x
2. Step 2: Convert to fraction form
   6,280.24/8,654.40 = 5,676.16/x
3. Step 3: Cross multiply
   6,280.24x = 8,654.40 × 5,676.16
4. Step 4: Simplify right side
   6,280.24x = 49,123,759.10
5. Step 5: Solve for x
   x = 49,123,759.10/6,280.24
6. Step 6: Final answer
   x = 7,821.96