Finding the Fourth Proportional to 148.48, 204.72 and 111.72

Step by Step Solution

1. Step 1: Write the proportion equation
   148.48 : 204.72 = 111.72 : x
2. Step 2: Convert to fraction form
   148.48/204.72 = 111.72/x
3. Step 3: Cross multiply
   148.48x = 204.72 × 111.72
4. Step 4: Simplify right side
   148.48x = 22,871.32
5. Step 5: Solve for x
   x = 22,871.32/148.48
6. Step 6: Final answer
   x = 154.04