Finding the Fourth Proportional to 116.25, 160.73 and 111.15

Step by Step Solution

1. Step 1: Write the proportion equation
   116.25 : 160.73 = 111.15 : x
2. Step 2: Convert to fraction form
   116.25/160.73 = 111.15/x
3. Step 3: Cross multiply
   116.25x = 160.73 × 111.15
4. Step 4: Simplify right side
   116.25x = 17,864.58
5. Step 5: Solve for x
   x = 17,864.58/116.25
6. Step 6: Final answer
   x = 153.67