Finding the Fourth Proportional to 111.86, 167.74 and 43.32

Step by Step Solution

1. Step 1: Write the proportion equation
   111.86 : 167.74 = 43.32 : x
2. Step 2: Convert to fraction form
   111.86/167.74 = 43.32/x
3. Step 3: Cross multiply
   111.86x = 167.74 × 43.32
4. Step 4: Simplify right side
   111.86x = 7,266.50
5. Step 5: Solve for x
   x = 7,266.50/111.86
6. Step 6: Final answer
   x = 64.96