Finding the Fourth Proportional to 13,151.27, 18,149.06 and 7,182.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,151.27 : 18,149.06 = 7,182.89 : x
2. Step 2: Convert to fraction form
   13,151.27/18,149.06 = 7,182.89/x
3. Step 3: Cross multiply
   13,151.27x = 18,149.06 × 7,182.89
4. Step 4: Simplify right side
   13,151.27x = 130,362,574.92
5. Step 5: Solve for x
   x = 130,362,574.92/13,151.27
6. Step 6: Final answer
   x = 9,912.55