Finding the Fourth Proportional to 5,562.72, 7,676.64 and 3,969.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,562.72 : 7,676.64 = 3,969.76 : x
2. Step 2: Convert to fraction form
   5,562.72/7,676.64 = 3,969.76/x
3. Step 3: Cross multiply
   5,562.72x = 7,676.64 × 3,969.76
4. Step 4: Simplify right side
   5,562.72x = 30,474,418.41
5. Step 5: Solve for x
   x = 30,474,418.41/5,562.72
6. Step 6: Final answer
   x = 5,478.33