Finding the Fourth Proportional to 111.96, 152.43 and 111.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111.96 : 152.43 = 111.60 : x
2. Step 2: Convert to fraction form
   111.96/152.43 = 111.60/x
3. Step 3: Cross multiply
   111.96x = 152.43 × 111.60
4. Step 4: Simplify right side
   111.96x = 17,011.19
5. Step 5: Solve for x
   x = 17,011.19/111.96
6. Step 6: Final answer
   x = 151.94