Finding the Fourth Proportional to 162.05, 241.72 and 143.82

Step by Step Solution

1. Step 1: Write the proportion equation
   162.05 : 241.72 = 143.82 : x
2. Step 2: Convert to fraction form
   162.05/241.72 = 143.82/x
3. Step 3: Cross multiply
   162.05x = 241.72 × 143.82
4. Step 4: Simplify right side
   162.05x = 34,763.81
5. Step 5: Solve for x
   x = 34,763.81/162.05
6. Step 6: Final answer
   x = 214.53