Finding the Fourth Proportional to 89.82, 123.86 and 60.66

Step by Step Solution

1. Step 1: Write the proportion equation
   89.82 : 123.86 = 60.66 : x
2. Step 2: Convert to fraction form
   89.82/123.86 = 60.66/x
3. Step 3: Cross multiply
   89.82x = 123.86 × 60.66
4. Step 4: Simplify right side
   89.82x = 7,513.50
5. Step 5: Solve for x
   x = 7,513.50/89.82
6. Step 6: Final answer
   x = 83.65