Finding the Fourth Proportional to 13,151.40, 18,144.72 and 9,375.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,151.40 : 18,144.72 = 9,375.24 : x
2. Step 2: Convert to fraction form
   13,151.40/18,144.72 = 9,375.24/x
3. Step 3: Cross multiply
   13,151.40x = 18,144.72 × 9,375.24
4. Step 4: Simplify right side
   13,151.40x = 170,111,104.73
5. Step 5: Solve for x
   x = 170,111,104.73/13,151.40
6. Step 6: Final answer
   x = 12,934.83