Finding the Fourth Proportional to 113.00, 168.29 and 111.59

Step by Step Solution

1. Step 1: Write the proportion equation
   113.00 : 168.29 = 111.59 : x
2. Step 2: Convert to fraction form
   113.00/168.29 = 111.59/x
3. Step 3: Cross multiply
   113.00x = 168.29 × 111.59
4. Step 4: Simplify right side
   113.00x = 18,778.50
5. Step 5: Solve for x
   x = 18,778.50/113.00
6. Step 6: Final answer
   x = 166.19