Finding the Fourth Proportional to 111.68, 167.68 and 63.62

Step by Step Solution

1. Step 1: Write the proportion equation
   111.68 : 167.68 = 63.62 : x
2. Step 2: Convert to fraction form
   111.68/167.68 = 63.62/x
3. Step 3: Cross multiply
   111.68x = 167.68 × 63.62
4. Step 4: Simplify right side
   111.68x = 10,667.80
5. Step 5: Solve for x
   x = 10,667.80/111.68
6. Step 6: Final answer
   x = 95.52