Finding the Fourth Proportional to 89.33, 123.28 and 54.37

Step by Step Solution

1. Step 1: Write the proportion equation
   89.33 : 123.28 = 54.37 : x
2. Step 2: Convert to fraction form
   89.33/123.28 = 54.37/x
3. Step 3: Cross multiply
   89.33x = 123.28 × 54.37
4. Step 4: Simplify right side
   89.33x = 6,701.89
5. Step 5: Solve for x
   x = 6,701.89/89.33
6. Step 6: Final answer
   x = 75.02