Finding the Fourth Proportional to 89.85, 123.96 and 60.82

Step by Step Solution

1. Step 1: Write the proportion equation
   89.85 : 123.96 = 60.82 : x
2. Step 2: Convert to fraction form
   89.85/123.96 = 60.82/x
3. Step 3: Cross multiply
   89.85x = 123.96 × 60.82
4. Step 4: Simplify right side
   89.85x = 7,539.25
5. Step 5: Solve for x
   x = 7,539.25/89.85
6. Step 6: Final answer
   x = 83.91