Finding the Fourth Proportional to 103.32, 142.52 and 75.69

Step by Step Solution

1. Step 1: Write the proportion equation
   103.32 : 142.52 = 75.69 : x
2. Step 2: Convert to fraction form
   103.32/142.52 = 75.69/x
3. Step 3: Cross multiply
   103.32x = 142.52 × 75.69
4. Step 4: Simplify right side
   103.32x = 10,786.96
5. Step 5: Solve for x
   x = 10,786.96/103.32
6. Step 6: Final answer
   x = 104.40