Finding the Fourth Proportional to 89.33, 133.82 and 52.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89.33 : 133.82 = 52.69 : x
2. Step 2: Convert to fraction form
   89.33/133.82 = 52.69/x
3. Step 3: Cross multiply
   89.33x = 133.82 × 52.69
4. Step 4: Simplify right side
   89.33x = 7,050.75
5. Step 5: Solve for x
   x = 7,050.75/89.33
6. Step 6: Final answer
   x = 78.93