Finding the Fourth Proportional to 5,576.24, 8,362.90 and 2,648.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,576.24 : 8,362.90 = 2,648.72 : x
2. Step 2: Convert to fraction form
   5,576.24/8,362.90 = 2,648.72/x
3. Step 3: Cross multiply
   5,576.24x = 8,362.90 × 2,648.72
4. Step 4: Simplify right side
   5,576.24x = 22,150,980.49
5. Step 5: Solve for x
   x = 22,150,980.49/5,576.24
6. Step 6: Final answer
   x = 3,972.39