Finding the Fourth Proportional to 111.00, 166.47 and 65.67

Step by Step Solution

1. Step 1: Write the proportion equation
   111.00 : 166.47 = 65.67 : x
2. Step 2: Convert to fraction form
   111.00/166.47 = 65.67/x
3. Step 3: Cross multiply
   111.00x = 166.47 × 65.67
4. Step 4: Simplify right side
   111.00x = 10,931.25
5. Step 5: Solve for x
   x = 10,931.25/111.00
6. Step 6: Final answer
   x = 98.48