Finding the Fourth Proportional to 15.69, 23.67 and 15.69

Step by Step Solution

1. Step 1: Write the proportion equation
   15.69 : 23.67 = 15.69 : x
2. Step 2: Convert to fraction form
   15.69/23.67 = 15.69/x
3. Step 3: Cross multiply
   15.69x = 23.67 × 15.69
4. Step 4: Simplify right side
   15.69x = 371.33
5. Step 5: Solve for x
   x = 371.33/15.69
6. Step 6: Final answer
   x = 23.67