Finding the Fourth Proportional to 158.10, 218.52 and 141.42

Step by Step Solution

1. Step 1: Write the proportion equation
   158.10 : 218.52 = 141.42 : x
2. Step 2: Convert to fraction form
   158.10/218.52 = 141.42/x
3. Step 3: Cross multiply
   158.10x = 218.52 × 141.42
4. Step 4: Simplify right side
   158.10x = 30,903.10
5. Step 5: Solve for x
   x = 30,903.10/158.10
6. Step 6: Final answer
   x = 195.47