Finding the Fourth Proportional to 111.69, 152.94 and 111.06

Step by Step Solution

1. Step 1: Write the proportion equation
   111.69 : 152.94 = 111.06 : x
2. Step 2: Convert to fraction form
   111.69/152.94 = 111.06/x
3. Step 3: Cross multiply
   111.69x = 152.94 × 111.06
4. Step 4: Simplify right side
   111.69x = 16,985.52
5. Step 5: Solve for x
   x = 16,985.52/111.69
6. Step 6: Final answer
   x = 152.08