Finding the Fourth Proportional to 12,165.82, 18,249.18 and 5,501.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,165.82 : 18,249.18 = 5,501.05 : x
2. Step 2: Convert to fraction form
   12,165.82/18,249.18 = 5,501.05/x
3. Step 3: Cross multiply
   12,165.82x = 18,249.18 × 5,501.05
4. Step 4: Simplify right side
   12,165.82x = 100,389,651.64
5. Step 5: Solve for x
   x = 100,389,651.64/12,165.82
6. Step 6: Final answer
   x = 8,251.78