Finding the Fourth Proportional to 111.63, 168.06 and 92.67

Step by Step Solution

1. Step 1: Write the proportion equation
   111.63 : 168.06 = 92.67 : x
2. Step 2: Convert to fraction form
   111.63/168.06 = 92.67/x
3. Step 3: Cross multiply
   111.63x = 168.06 × 92.67
4. Step 4: Simplify right side
   111.63x = 15,574.12
5. Step 5: Solve for x
   x = 15,574.12/111.63
6. Step 6: Final answer
   x = 139.52