Finding the Fourth Proportional to 6,399.56, 9,571.59 and 3,760.79

Step by Step Solution

1. Step 1: Write the proportion equation
   6,399.56 : 9,571.59 = 3,760.79 : x
2. Step 2: Convert to fraction form
   6,399.56/9,571.59 = 3,760.79/x
3. Step 3: Cross multiply
   6,399.56x = 9,571.59 × 3,760.79
4. Step 4: Simplify right side
   6,399.56x = 35,996,692.10
5. Step 5: Solve for x
   x = 35,996,692.10/6,399.56
6. Step 6: Final answer
   x = 5,624.87