Finding the Fourth Proportional to 69.32, 103.88 and 28.71

Step by Step Solution

1. Step 1: Write the proportion equation
   69.32 : 103.88 = 28.71 : x
2. Step 2: Convert to fraction form
   69.32/103.88 = 28.71/x
3. Step 3: Cross multiply
   69.32x = 103.88 × 28.71
4. Step 4: Simplify right side
   69.32x = 2,982.25
5. Step 5: Solve for x
   x = 2,982.25/69.32
6. Step 6: Final answer
   x = 43.02