Finding the Fourth Proportional to 89.33, 134.01 and 28.47

Step by Step Solution

1. Step 1: Write the proportion equation
   89.33 : 134.01 = 28.47 : x
2. Step 2: Convert to fraction form
   89.33/134.01 = 28.47/x
3. Step 3: Cross multiply
   89.33x = 134.01 × 28.47
4. Step 4: Simplify right side
   89.33x = 3,814.87
5. Step 5: Solve for x
   x = 3,814.87/89.33
6. Step 6: Final answer
   x = 42.71