Finding the Fourth Proportional to 111.03, 153.30 and 69.60

Step by Step Solution

1. Step 1: Write the proportion equation
   111.03 : 153.30 = 69.60 : x
2. Step 2: Convert to fraction form
   111.03/153.30 = 69.60/x
3. Step 3: Cross multiply
   111.03x = 153.30 × 69.60
4. Step 4: Simplify right side
   111.03x = 10,669.33
5. Step 5: Solve for x
   x = 10,669.33/111.03
6. Step 6: Final answer
   x = 96.09