Finding the Fourth Proportional to 8,309.16, 12,459.72 and 4,412.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309.16 : 12,459.72 = 4,412.52 : x
2. Step 2: Convert to fraction form
   8,309.16/12,459.72 = 4,412.52/x
3. Step 3: Cross multiply
   8,309.16x = 12,459.72 × 4,412.52
4. Step 4: Simplify right side
   8,309.16x = 54,978,763.69
5. Step 5: Solve for x
   x = 54,978,763.69/8,309.16
6. Step 6: Final answer
   x = 6,616.65