Finding the Fourth Proportional to 80.52, 111.17 and 63.00

Step by Step Solution

1. Step 1: Write the proportion equation
   80.52 : 111.17 = 63.00 : x
2. Step 2: Convert to fraction form
   80.52/111.17 = 63.00/x
3. Step 3: Cross multiply
   80.52x = 111.17 × 63.00
4. Step 4: Simplify right side
   80.52x = 7,003.54
5. Step 5: Solve for x
   x = 7,003.54/80.52
6. Step 6: Final answer
   x = 86.97