Finding the Fourth Proportional to 89.29, 123.18 and 59.79

Step by Step Solution

1. Step 1: Write the proportion equation
   89.29 : 123.18 = 59.79 : x
2. Step 2: Convert to fraction form
   89.29/123.18 = 59.79/x
3. Step 3: Cross multiply
   89.29x = 123.18 × 59.79
4. Step 4: Simplify right side
   89.29x = 7,365.08
5. Step 5: Solve for x
   x = 7,365.08/89.29
6. Step 6: Final answer
   x = 82.49