Finding the Fourth Proportional to 96.83, 133.59 and 72.27

Step by Step Solution

1. Step 1: Write the proportion equation
   96.83 : 133.59 = 72.27 : x
2. Step 2: Convert to fraction form
   96.83/133.59 = 72.27/x
3. Step 3: Cross multiply
   96.83x = 133.59 × 72.27
4. Step 4: Simplify right side
   96.83x = 9,654.55
5. Step 5: Solve for x
   x = 9,654.55/96.83
6. Step 6: Final answer
   x = 99.71