Finding the Fourth Proportional to 6,665.09, 9,196.62 and 3,831.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,665.09 : 9,196.62 = 3,831.80 : x
2. Step 2: Convert to fraction form
   6,665.09/9,196.62 = 3,831.80/x
3. Step 3: Cross multiply
   6,665.09x = 9,196.62 × 3,831.80
4. Step 4: Simplify right side
   6,665.09x = 35,239,608.52
5. Step 5: Solve for x
   x = 35,239,608.52/6,665.09
6. Step 6: Final answer
   x = 5,287.19