Finding the Fourth Proportional to 8,152.37, 12,217.61 and 4,449.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,152.37 : 12,217.61 = 4,449.05 : x
2. Step 2: Convert to fraction form
   8,152.37/12,217.61 = 4,449.05/x
3. Step 3: Cross multiply
   8,152.37x = 12,217.61 × 4,449.05
4. Step 4: Simplify right side
   8,152.37x = 54,356,735.53
5. Step 5: Solve for x
   x = 54,356,735.53/8,152.37
6. Step 6: Final answer
   x = 6,667.60