Finding the Fourth Proportional to 12,168.96, 18,255.23 and 3,847.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,168.96 : 18,255.23 = 3,847.09 : x
2. Step 2: Convert to fraction form
   12,168.96/18,255.23 = 3,847.09/x
3. Step 3: Cross multiply
   12,168.96x = 18,255.23 × 3,847.09
4. Step 4: Simplify right side
   12,168.96x = 70,229,462.33
5. Step 5: Solve for x
   x = 70,229,462.33/12,168.96
6. Step 6: Final answer
   x = 5,771.20