Finding the Fourth Proportional to 111.07, 153.28 and 69.05

Step by Step Solution

1. Step 1: Write the proportion equation
   111.07 : 153.28 = 69.05 : x
2. Step 2: Convert to fraction form
   111.07/153.28 = 69.05/x
3. Step 3: Cross multiply
   111.07x = 153.28 × 69.05
4. Step 4: Simplify right side
   111.07x = 10,582.87
5. Step 5: Solve for x
   x = 10,582.87/111.07
6. Step 6: Final answer
   x = 95.29