Finding the Fourth Proportional to 111.76, 167.64 and 43.30

Step by Step Solution

1. Step 1: Write the proportion equation
   111.76 : 167.64 = 43.30 : x
2. Step 2: Convert to fraction form
   111.76/167.64 = 43.30/x
3. Step 3: Cross multiply
   111.76x = 167.64 × 43.30
4. Step 4: Simplify right side
   111.76x = 7,257.76
5. Step 5: Solve for x
   x = 7,257.76/111.76
6. Step 6: Final answer
   x = 64.94