Finding the Fourth Proportional to 111.00, 153.24 and 84.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111.00 : 153.24 = 84.72 : x
2. Step 2: Convert to fraction form
   111.00/153.24 = 84.72/x
3. Step 3: Cross multiply
   111.00x = 153.24 × 84.72
4. Step 4: Simplify right side
   111.00x = 12,982.49
5. Step 5: Solve for x
   x = 12,982.49/111.00
6. Step 6: Final answer
   x = 116.96