Finding the Fourth Proportional to 113.37, 169.89 and 67.69

Step by Step Solution

1. Step 1: Write the proportion equation
   113.37 : 169.89 = 67.69 : x
2. Step 2: Convert to fraction form
   113.37/169.89 = 67.69/x
3. Step 3: Cross multiply
   113.37x = 169.89 × 67.69
4. Step 4: Simplify right side
   113.37x = 11,499.85
5. Step 5: Solve for x
   x = 11,499.85/113.37
6. Step 6: Final answer
   x = 101.44