Finding the Fourth Proportional to 6,086.21, 8,399.27 and 3,728.48

Step by Step Solution

1. Step 1: Write the proportion equation
   6,086.21 : 8,399.27 = 3,728.48 : x
2. Step 2: Convert to fraction form
   6,086.21/8,399.27 = 3,728.48/x
3. Step 3: Cross multiply
   6,086.21x = 8,399.27 × 3,728.48
4. Step 4: Simplify right side
   6,086.21x = 31,316,491.57
5. Step 5: Solve for x
   x = 31,316,491.57/6,086.21
6. Step 6: Final answer
   x = 5,145.48