Finding the Fourth Proportional to 12,163.05, 18,241.98 and 3,843.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,163.05 : 18,241.98 = 3,843.72 : x
2. Step 2: Convert to fraction form
   12,163.05/18,241.98 = 3,843.72/x
3. Step 3: Cross multiply
   12,163.05x = 18,241.98 × 3,843.72
4. Step 4: Simplify right side
   12,163.05x = 70,117,063.37
5. Step 5: Solve for x
   x = 70,117,063.37/12,163.05
6. Step 6: Final answer
   x = 5,764.76