Finding the Fourth Proportional to 111.94, 155.32 and 107.37

Step by Step Solution

1. Step 1: Write the proportion equation
   111.94 : 155.32 = 107.37 : x
2. Step 2: Convert to fraction form
   111.94/155.32 = 107.37/x
3. Step 3: Cross multiply
   111.94x = 155.32 × 107.37
4. Step 4: Simplify right side
   111.94x = 16,676.44
5. Step 5: Solve for x
   x = 16,676.44/111.94
6. Step 6: Final answer
   x = 148.98