Finding the Fourth Proportional to 89.15, 123.05 and 67.37

Step by Step Solution

1. Step 1: Write the proportion equation
   89.15 : 123.05 = 67.37 : x
2. Step 2: Convert to fraction form
   89.15/123.05 = 67.37/x
3. Step 3: Cross multiply
   89.15x = 123.05 × 67.37
4. Step 4: Simplify right side
   89.15x = 8,289.43
5. Step 5: Solve for x
   x = 8,289.43/89.15
6. Step 6: Final answer
   x = 92.99