Finding the Fourth Proportional to 89.18, 123.10 and 60.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89.18 : 123.10 = 60.10 : x
2. Step 2: Convert to fraction form
   89.18/123.10 = 60.10/x
3. Step 3: Cross multiply
   89.18x = 123.10 × 60.10
4. Step 4: Simplify right side
   89.18x = 7,398.31
5. Step 5: Solve for x
   x = 7,398.31/89.18
6. Step 6: Final answer
   x = 82.96