Finding the Fourth Proportional to 8,327.36, 12,491.21 and 3,393.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,327.36 : 12,491.21 = 3,393.59 : x
2. Step 2: Convert to fraction form
   8,327.36/12,491.21 = 3,393.59/x
3. Step 3: Cross multiply
   8,327.36x = 12,491.21 × 3,393.59
4. Step 4: Simplify right side
   8,327.36x = 42,389,991.37
5. Step 5: Solve for x
   x = 42,389,991.37/8,327.36
6. Step 6: Final answer
   x = 5,090.45