Finding the Fourth Proportional to 82.26, 123.42 and 64.24

Step by Step Solution

1. Step 1: Write the proportion equation
   82.26 : 123.42 = 64.24 : x
2. Step 2: Convert to fraction form
   82.26/123.42 = 64.24/x
3. Step 3: Cross multiply
   82.26x = 123.42 × 64.24
4. Step 4: Simplify right side
   82.26x = 7,928.50
5. Step 5: Solve for x
   x = 7,928.50/82.26
6. Step 6: Final answer
   x = 96.38