Finding the Fourth Proportional to 8,327.09, 12,489.56 and 3,947.33

Step by Step Solution

1. Step 1: Write the proportion equation
   8,327.09 : 12,489.56 = 3,947.33 : x
2. Step 2: Convert to fraction form
   8,327.09/12,489.56 = 3,947.33/x
3. Step 3: Cross multiply
   8,327.09x = 12,489.56 × 3,947.33
4. Step 4: Simplify right side
   8,327.09x = 49,300,395.14
5. Step 5: Solve for x
   x = 49,300,395.14/8,327.09
6. Step 6: Final answer
   x = 5,920.48