Finding the Fourth Proportional to 111.50, 167.24 and 43.01

Step by Step Solution

1. Step 1: Write the proportion equation
   111.50 : 167.24 = 43.01 : x
2. Step 2: Convert to fraction form
   111.50/167.24 = 43.01/x
3. Step 3: Cross multiply
   111.50x = 167.24 × 43.01
4. Step 4: Simplify right side
   111.50x = 7,192.78
5. Step 5: Solve for x
   x = 7,192.78/111.50
6. Step 6: Final answer
   x = 64.51