Finding the Fourth Proportional to 8,099.79, 12,152.85 and 3,168.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,099.79 : 12,152.85 = 3,168.57 : x
2. Step 2: Convert to fraction form
   8,099.79/12,152.85 = 3,168.57/x
3. Step 3: Cross multiply
   8,099.79x = 12,152.85 × 3,168.57
4. Step 4: Simplify right side
   8,099.79x = 38,507,155.92
5. Step 5: Solve for x
   x = 38,507,155.92/8,099.79
6. Step 6: Final answer
   x = 4,754.09