Finding the Fourth Proportional to 269.69, 404.55 and 105.24

Step by Step Solution

1. Step 1: Write the proportion equation
   269.69 : 404.55 = 105.24 : x
2. Step 2: Convert to fraction form
   269.69/404.55 = 105.24/x
3. Step 3: Cross multiply
   269.69x = 404.55 × 105.24
4. Step 4: Simplify right side
   269.69x = 42,574.84
5. Step 5: Solve for x
   x = 42,574.84/269.69
6. Step 6: Final answer
   x = 157.87