Finding the Fourth Proportional to 6,399.42, 8,831.24 and 3,746.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,399.42 : 8,831.24 = 3,746.32 : x
2. Step 2: Convert to fraction form
   6,399.42/8,831.24 = 3,746.32/x
3. Step 3: Cross multiply
   6,399.42x = 8,831.24 × 3,746.32
4. Step 4: Simplify right side
   6,399.42x = 33,084,651.04
5. Step 5: Solve for x
   x = 33,084,651.04/6,399.42
6. Step 6: Final answer
   x = 5,169.95