Finding the Fourth Proportional to 8,984.33, 12,399.96 and 5,449.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,984.33 : 12,399.96 = 5,449.31 : x
2. Step 2: Convert to fraction form
   8,984.33/12,399.96 = 5,449.31/x
3. Step 3: Cross multiply
   8,984.33x = 12,399.96 × 5,449.31
4. Step 4: Simplify right side
   8,984.33x = 67,571,226.03
5. Step 5: Solve for x
   x = 67,571,226.03/8,984.33
6. Step 6: Final answer
   x = 7,521.01