Finding the Fourth Proportional to 116.42, 174.52 and 107.69

Step by Step Solution

1. Step 1: Write the proportion equation
   116.42 : 174.52 = 107.69 : x
2. Step 2: Convert to fraction form
   116.42/174.52 = 107.69/x
3. Step 3: Cross multiply
   116.42x = 174.52 × 107.69
4. Step 4: Simplify right side
   116.42x = 18,793.52
5. Step 5: Solve for x
   x = 18,793.52/116.42
6. Step 6: Final answer
   x = 161.43