Finding the Fourth Proportional to 11.69, 17.55 and 5.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11.69 : 17.55 = 5.69 : x
2. Step 2: Convert to fraction form
   11.69/17.55 = 5.69/x
3. Step 3: Cross multiply
   11.69x = 17.55 × 5.69
4. Step 4: Simplify right side
   11.69x = 99.74
5. Step 5: Solve for x
   x = 99.74/11.69
6. Step 6: Final answer
   x = 8.53