Finding the Fourth Proportional to 11,496.20, 17,266.16 and 7,144.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,496.20 : 17,266.16 = 7,144.07 : x
2. Step 2: Convert to fraction form
   11,496.20/17,266.16 = 7,144.07/x
3. Step 3: Cross multiply
   11,496.20x = 17,266.16 × 7,144.07
4. Step 4: Simplify right side
   11,496.20x = 123,350,569.34
5. Step 5: Solve for x
   x = 123,350,569.34/11,496.20
6. Step 6: Final answer
   x = 10,729.69