Finding the Fourth Proportional to 89.34, 123.16 and 60.20

Step by Step Solution

1. Step 1: Write the proportion equation
   89.34 : 123.16 = 60.20 : x
2. Step 2: Convert to fraction form
   89.34/123.16 = 60.20/x
3. Step 3: Cross multiply
   89.34x = 123.16 × 60.20
4. Step 4: Simplify right side
   89.34x = 7,414.23
5. Step 5: Solve for x
   x = 7,414.23/89.34
6. Step 6: Final answer
   x = 82.99