Finding the Fourth Proportional to 12,182.42, 16,806.38 and 7,144.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,182.42 : 16,806.38 = 7,144.08 : x
2. Step 2: Convert to fraction form
   12,182.42/16,806.38 = 7,144.08/x
3. Step 3: Cross multiply
   12,182.42x = 16,806.38 × 7,144.08
4. Step 4: Simplify right side
   12,182.42x = 120,066,087.51
5. Step 5: Solve for x
   x = 120,066,087.51/12,182.42
6. Step 6: Final answer
   x = 9,855.69