Finding the Fourth Proportional to 116.16, 174.54 and 111.42

Step by Step Solution

1. Step 1: Write the proportion equation
   116.16 : 174.54 = 111.42 : x
2. Step 2: Convert to fraction form
   116.16/174.54 = 111.42/x
3. Step 3: Cross multiply
   116.16x = 174.54 × 111.42
4. Step 4: Simplify right side
   116.16x = 19,447.25
5. Step 5: Solve for x
   x = 19,447.25/116.16
6. Step 6: Final answer
   x = 167.42