Finding the Fourth Proportional to 214.72, 296.42 and 144.83

Step by Step Solution

1. Step 1: Write the proportion equation
   214.72 : 296.42 = 144.83 : x
2. Step 2: Convert to fraction form
   214.72/296.42 = 144.83/x
3. Step 3: Cross multiply
   214.72x = 296.42 × 144.83
4. Step 4: Simplify right side
   214.72x = 42,930.51
5. Step 5: Solve for x
   x = 42,930.51/214.72
6. Step 6: Final answer
   x = 199.94