Finding the Fourth Proportional to 111.02, 153.01 and 109.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111.02 : 153.01 = 109.60 : x
2. Step 2: Convert to fraction form
   111.02/153.01 = 109.60/x
3. Step 3: Cross multiply
   111.02x = 153.01 × 109.60
4. Step 4: Simplify right side
   111.02x = 16,769.90
5. Step 5: Solve for x
   x = 16,769.90/111.02
6. Step 6: Final answer
   x = 151.05