Finding the Fourth Proportional to 111.53, 167.16 and 43.01

Step by Step Solution

1. Step 1: Write the proportion equation
   111.53 : 167.16 = 43.01 : x
2. Step 2: Convert to fraction form
   111.53/167.16 = 43.01/x
3. Step 3: Cross multiply
   111.53x = 167.16 × 43.01
4. Step 4: Simplify right side
   111.53x = 7,190.39
5. Step 5: Solve for x
   x = 7,190.39/111.53
6. Step 6: Final answer
   x = 64.47