Finding the Fourth Proportional to 111.88, 153.50 and 110.86

Step by Step Solution

1. Step 1: Write the proportion equation
   111.88 : 153.50 = 110.86 : x
2. Step 2: Convert to fraction form
   111.88/153.50 = 110.86/x
3. Step 3: Cross multiply
   111.88x = 153.50 × 110.86
4. Step 4: Simplify right side
   111.88x = 17,017.01
5. Step 5: Solve for x
   x = 17,017.01/111.88
6. Step 6: Final answer
   x = 152.10