Finding the Fourth Proportional to 89.30, 123.17 and 60.18

Step by Step Solution

1. Step 1: Write the proportion equation
   89.30 : 123.17 = 60.18 : x
2. Step 2: Convert to fraction form
   89.30/123.17 = 60.18/x
3. Step 3: Cross multiply
   89.30x = 123.17 × 60.18
4. Step 4: Simplify right side
   89.30x = 7,412.37
5. Step 5: Solve for x
   x = 7,412.37/89.30
6. Step 6: Final answer
   x = 83.01