Finding the Fourth Proportional to 89.83, 123.90 and 60.67

Step by Step Solution

1. Step 1: Write the proportion equation
   89.83 : 123.90 = 60.67 : x
2. Step 2: Convert to fraction form
   89.83/123.90 = 60.67/x
3. Step 3: Cross multiply
   89.83x = 123.90 × 60.67
4. Step 4: Simplify right side
   89.83x = 7,517.01
5. Step 5: Solve for x
   x = 7,517.01/89.83
6. Step 6: Final answer
   x = 83.68