Finding the Fourth Proportional to 111.48, 152.73 and 107.16

Step by Step Solution

1. Step 1: Write the proportion equation
   111.48 : 152.73 = 107.16 : x
2. Step 2: Convert to fraction form
   111.48/152.73 = 107.16/x
3. Step 3: Cross multiply
   111.48x = 152.73 × 107.16
4. Step 4: Simplify right side
   111.48x = 16,366.55
5. Step 5: Solve for x
   x = 16,366.55/111.48
6. Step 6: Final answer
   x = 146.81