Finding the Fourth Proportional to 103.67, 155.52 and 35.21

Step by Step Solution

1. Step 1: Write the proportion equation
   103.67 : 155.52 = 35.21 : x
2. Step 2: Convert to fraction form
   103.67/155.52 = 35.21/x
3. Step 3: Cross multiply
   103.67x = 155.52 × 35.21
4. Step 4: Simplify right side
   103.67x = 5,475.86
5. Step 5: Solve for x
   x = 5,475.86/103.67
6. Step 6: Final answer
   x = 52.82