Finding the Fourth Proportional to 111.96, 168.01 and 43.49

Step by Step Solution

1. Step 1: Write the proportion equation
   111.96 : 168.01 = 43.49 : x
2. Step 2: Convert to fraction form
   111.96/168.01 = 43.49/x
3. Step 3: Cross multiply
   111.96x = 168.01 × 43.49
4. Step 4: Simplify right side
   111.96x = 7,306.35
5. Step 5: Solve for x
   x = 7,306.35/111.96
6. Step 6: Final answer
   x = 65.26