Finding the Fourth Proportional to 11,717.48, 17,580.27 and 7,329.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,717.48 : 17,580.27 = 7,329.71 : x
2. Step 2: Convert to fraction form
   11,717.48/17,580.27 = 7,329.71/x
3. Step 3: Cross multiply
   11,717.48x = 17,580.27 × 7,329.71
4. Step 4: Simplify right side
   11,717.48x = 128,858,280.82
5. Step 5: Solve for x
   x = 128,858,280.82/11,717.48
6. Step 6: Final answer
   x = 10,997.10