Finding the Fourth Proportional to 11,495.69, 17,265.41 and 7,143.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,495.69 : 17,265.41 = 7,143.56 : x
2. Step 2: Convert to fraction form
   11,495.69/17,265.41 = 7,143.56/x
3. Step 3: Cross multiply
   11,495.69x = 17,265.41 × 7,143.56
4. Step 4: Simplify right side
   11,495.69x = 123,336,526.49
5. Step 5: Solve for x
   x = 123,336,526.49/11,495.69
6. Step 6: Final answer
   x = 10,728.93