Finding the Fourth Proportional to 82.72, 124.18 and 65.62

Step by Step Solution

1. Step 1: Write the proportion equation
   82.72 : 124.18 = 65.62 : x
2. Step 2: Convert to fraction form
   82.72/124.18 = 65.62/x
3. Step 3: Cross multiply
   82.72x = 124.18 × 65.62
4. Step 4: Simplify right side
   82.72x = 8,148.69
5. Step 5: Solve for x
   x = 8,148.69/82.72
6. Step 6: Final answer
   x = 98.51