Finding the Fourth Proportional to 103.58, 155.34 and 67.47

Step by Step Solution

1. Step 1: Write the proportion equation
   103.58 : 155.34 = 67.47 : x
2. Step 2: Convert to fraction form
   103.58/155.34 = 67.47/x
3. Step 3: Cross multiply
   103.58x = 155.34 × 67.47
4. Step 4: Simplify right side
   103.58x = 10,480.79
5. Step 5: Solve for x
   x = 10,480.79/103.58
6. Step 6: Final answer
   x = 101.18