Finding the Fourth Proportional to 5,488.09, 8,227.27 and 4,099.75

Step by Step Solution

1. Step 1: Write the proportion equation
   5,488.09 : 8,227.27 = 4,099.75 : x
2. Step 2: Convert to fraction form
   5,488.09/8,227.27 = 4,099.75/x
3. Step 3: Cross multiply
   5,488.09x = 8,227.27 × 4,099.75
4. Step 4: Simplify right side
   5,488.09x = 33,729,688.55
5. Step 5: Solve for x
   x = 33,729,688.55/5,488.09
6. Step 6: Final answer
   x = 6,145.99