Finding the Fourth Proportional to 12,168.72, 18,241.52 and 3,843

Step by Step Solution

1. Step 1: Write the proportion equation
   12,168.72 : 18,241.52 = 3,843 : x
2. Step 2: Convert to fraction form
   12,168.72/18,241.52 = 3,843/x
3. Step 3: Cross multiply
   12,168.72x = 18,241.52 × 3,843
4. Step 4: Simplify right side
   12,168.72x = 70,102,161.36
5. Step 5: Solve for x
   x = 70,102,161.36/12,168.72
6. Step 6: Final answer
   x = 5,760.85