Finding the Fourth Proportional to 111.29, 166.81 and 63.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111.29 : 166.81 = 63.10 : x
2. Step 2: Convert to fraction form
   111.29/166.81 = 63.10/x
3. Step 3: Cross multiply
   111.29x = 166.81 × 63.10
4. Step 4: Simplify right side
   111.29x = 10,525.71
5. Step 5: Solve for x
   x = 10,525.71/111.29
6. Step 6: Final answer
   x = 94.58