Finding the Fourth Proportional to 116.42, 173.61 and 103.30

Step by Step Solution

1. Step 1: Write the proportion equation
   116.42 : 173.61 = 103.30 : x
2. Step 2: Convert to fraction form
   116.42/173.61 = 103.30/x
3. Step 3: Cross multiply
   116.42x = 173.61 × 103.30
4. Step 4: Simplify right side
   116.42x = 17,934.16
5. Step 5: Solve for x
   x = 17,934.16/116.42
6. Step 6: Final answer
   x = 154.05