Finding the Fourth Proportional to 111.94, 167.64 and 108.52

Step by Step Solution

1. Step 1: Write the proportion equation
   111.94 : 167.64 = 108.52 : x
2. Step 2: Convert to fraction form
   111.94/167.64 = 108.52/x
3. Step 3: Cross multiply
   111.94x = 167.64 × 108.52
4. Step 4: Simplify right side
   111.94x = 18,192.29
5. Step 5: Solve for x
   x = 18,192.29/111.94
6. Step 6: Final answer
   x = 162.52