Finding the Fourth Proportional to 111.01, 153.33 and 83.47

Step by Step Solution

1. Step 1: Write the proportion equation
   111.01 : 153.33 = 83.47 : x
2. Step 2: Convert to fraction form
   111.01/153.33 = 83.47/x
3. Step 3: Cross multiply
   111.01x = 153.33 × 83.47
4. Step 4: Simplify right side
   111.01x = 12,797.69
5. Step 5: Solve for x
   x = 12,797.69/111.01
6. Step 6: Final answer
   x = 115.29