Finding the Fourth Proportional to 111.35, 167.13 and 103.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111.35 : 167.13 = 103.25 : x
2. Step 2: Convert to fraction form
   111.35/167.13 = 103.25/x
3. Step 3: Cross multiply
   111.35x = 167.13 × 103.25
4. Step 4: Simplify right side
   111.35x = 17,255.34
5. Step 5: Solve for x
   x = 17,255.34/111.35
6. Step 6: Final answer
   x = 154.97