Finding the Fourth Proportional to 111.37, 166.83 and 65.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111.37 : 166.83 = 65.50 : x
2. Step 2: Convert to fraction form
   111.37/166.83 = 65.50/x
3. Step 3: Cross multiply
   111.37x = 166.83 × 65.50
4. Step 4: Simplify right side
   111.37x = 10,927.37
5. Step 5: Solve for x
   x = 10,927.37/111.37
6. Step 6: Final answer
   x = 98.12