Finding the Fourth Proportional to 12,166, 18,249.34 and 3,958

Step by Step Solution

1. Step 1: Write the proportion equation
   12,166 : 18,249.34 = 3,958 : x
2. Step 2: Convert to fraction form
   12,166/18,249.34 = 3,958/x
3. Step 3: Cross multiply
   12,166x = 18,249.34 × 3,958
4. Step 4: Simplify right side
   12,166x = 72,230,887.72
5. Step 5: Solve for x
   x = 72,230,887.72/12,166
6. Step 6: Final answer
   x = 5,937.11