Finding the Fourth Proportional to 89.87, 123.92 and 60.71

Step by Step Solution

1. Step 1: Write the proportion equation
   89.87 : 123.92 = 60.71 : x
2. Step 2: Convert to fraction form
   89.87/123.92 = 60.71/x
3. Step 3: Cross multiply
   89.87x = 123.92 × 60.71
4. Step 4: Simplify right side
   89.87x = 7,523.33
5. Step 5: Solve for x
   x = 7,523.33/89.87
6. Step 6: Final answer
   x = 83.71