Finding the Fourth Proportional to 89.34, 123.20 and 60.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89.34 : 123.20 = 60.18 : x
2. Step 2: Convert to fraction form
   89.34/123.20 = 60.18/x
3. Step 3: Cross multiply
   89.34x = 123.20 × 60.18
4. Step 4: Simplify right side
   89.34x = 7,414.18
5. Step 5: Solve for x
   x = 7,414.18/89.34
6. Step 6: Final answer
   x = 82.99