Finding the Fourth Proportional to 185.96, 256.72 and 144.42

Step by Step Solution

1. Step 1: Write the proportion equation
   185.96 : 256.72 = 144.42 : x
2. Step 2: Convert to fraction form
   185.96/256.72 = 144.42/x
3. Step 3: Cross multiply
   185.96x = 256.72 × 144.42
4. Step 4: Simplify right side
   185.96x = 37,075.50
5. Step 5: Solve for x
   x = 37,075.50/185.96
6. Step 6: Final answer
   x = 199.37