Finding the Fourth Proportional to 111.49, 167.18 and 43.03

Step by Step Solution

1. Step 1: Write the proportion equation
   111.49 : 167.18 = 43.03 : x
2. Step 2: Convert to fraction form
   111.49/167.18 = 43.03/x
3. Step 3: Cross multiply
   111.49x = 167.18 × 43.03
4. Step 4: Simplify right side
   111.49x = 7,193.76
5. Step 5: Solve for x
   x = 7,193.76/111.49
6. Step 6: Final answer
   x = 64.52