Finding the Fourth Proportional to 5,560.56, 7,671.72 and 3,967.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,560.56 : 7,671.72 = 3,967.47 : x
2. Step 2: Convert to fraction form
   5,560.56/7,671.72 = 3,967.47/x
3. Step 3: Cross multiply
   5,560.56x = 7,671.72 × 3,967.47
4. Step 4: Simplify right side
   5,560.56x = 30,437,318.95
5. Step 5: Solve for x
   x = 30,437,318.95/5,560.56
6. Step 6: Final answer
   x = 5,473.79