Finding the Fourth Proportional to 11,433.97, 17,081.67 and 7,240.40

Step by Step Solution

1. Step 1: Write the proportion equation
   11,433.97 : 17,081.67 = 7,240.40 : x
2. Step 2: Convert to fraction form
   11,433.97/17,081.67 = 7,240.40/x
3. Step 3: Cross multiply
   11,433.97x = 17,081.67 × 7,240.40
4. Step 4: Simplify right side
   11,433.97x = 123,678,123.47
5. Step 5: Solve for x
   x = 123,678,123.47/11,433.97
6. Step 6: Final answer
   x = 10,816.73