Finding the Fourth Proportional to 71.69, 107.52 and 28.33

Step by Step Solution

1. Step 1: Write the proportion equation
   71.69 : 107.52 = 28.33 : x
2. Step 2: Convert to fraction form
   71.69/107.52 = 28.33/x
3. Step 3: Cross multiply
   71.69x = 107.52 × 28.33
4. Step 4: Simplify right side
   71.69x = 3,046.04
5. Step 5: Solve for x
   x = 3,046.04/71.69
6. Step 6: Final answer
   x = 42.49