Finding the Fourth Proportional to 146.82, 219.72 and 141.15

Step by Step Solution

1. Step 1: Write the proportion equation
   146.82 : 219.72 = 141.15 : x
2. Step 2: Convert to fraction form
   146.82/219.72 = 141.15/x
3. Step 3: Cross multiply
   146.82x = 219.72 × 141.15
4. Step 4: Simplify right side
   146.82x = 31,013.48
5. Step 5: Solve for x
   x = 31,013.48/146.82
6. Step 6: Final answer
   x = 211.23