Finding the Fourth Proportional to 185.48, 255.72 and 152.72

Step by Step Solution

1. Step 1: Write the proportion equation
   185.48 : 255.72 = 152.72 : x
2. Step 2: Convert to fraction form
   185.48/255.72 = 152.72/x
3. Step 3: Cross multiply
   185.48x = 255.72 × 152.72
4. Step 4: Simplify right side
   185.48x = 39,053.56
5. Step 5: Solve for x
   x = 39,053.56/185.48
6. Step 6: Final answer
   x = 210.55