Finding the Fourth Proportional to 111.09, 166.64 and 63.00

Step by Step Solution

1. Step 1: Write the proportion equation
   111.09 : 166.64 = 63.00 : x
2. Step 2: Convert to fraction form
   111.09/166.64 = 63.00/x
3. Step 3: Cross multiply
   111.09x = 166.64 × 63.00
4. Step 4: Simplify right side
   111.09x = 10,499.10
5. Step 5: Solve for x
   x = 10,499.10/111.09
6. Step 6: Final answer
   x = 94.51