Finding the Fourth Proportional to 103.24, 154.78 and 34.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103.24 : 154.78 = 34.72 : x
2. Step 2: Convert to fraction form
   103.24/154.78 = 34.72/x
3. Step 3: Cross multiply
   103.24x = 154.78 × 34.72
4. Step 4: Simplify right side
   103.24x = 5,373.96
5. Step 5: Solve for x
   x = 5,373.96/103.24
6. Step 6: Final answer
   x = 52.05