Finding the Fourth Proportional to 6,222.12, 8,585.89 and 3,831.71

Step by Step Solution

1. Step 1: Write the proportion equation
   6,222.12 : 8,585.89 = 3,831.71 : x
2. Step 2: Convert to fraction form
   6,222.12/8,585.89 = 3,831.71/x
3. Step 3: Cross multiply
   6,222.12x = 8,585.89 × 3,831.71
4. Step 4: Simplify right side
   6,222.12x = 32,898,640.57
5. Step 5: Solve for x
   x = 32,898,640.57/6,222.12
6. Step 6: Final answer
   x = 5,287.37