Finding the Fourth Proportional to 111.58, 167.37 and 43.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111.58 : 167.37 = 43.10 : x
2. Step 2: Convert to fraction form
   111.58/167.37 = 43.10/x
3. Step 3: Cross multiply
   111.58x = 167.37 × 43.10
4. Step 4: Simplify right side
   111.58x = 7,213.65
5. Step 5: Solve for x
   x = 7,213.65/111.58
6. Step 6: Final answer
   x = 64.65