Finding the Fourth Proportional to 111.73, 167.61 and 43.25

Step by Step Solution

1. Step 1: Write the proportion equation
   111.73 : 167.61 = 43.25 : x
2. Step 2: Convert to fraction form
   111.73/167.61 = 43.25/x
3. Step 3: Cross multiply
   111.73x = 167.61 × 43.25
4. Step 4: Simplify right side
   111.73x = 7,249.06
5. Step 5: Solve for x
   x = 7,249.06/111.73
6. Step 6: Final answer
   x = 64.88