Finding the Fourth Proportional to 89.61, 134.33 and 43.94

Step by Step Solution

1. Step 1: Write the proportion equation
   89.61 : 134.33 = 43.94 : x
2. Step 2: Convert to fraction form
   89.61/134.33 = 43.94/x
3. Step 3: Cross multiply
   89.61x = 134.33 × 43.94
4. Step 4: Simplify right side
   89.61x = 5,902.46
5. Step 5: Solve for x
   x = 5,902.46/89.61
6. Step 6: Final answer
   x = 65.87