Finding the Fourth Proportional to 82.27, 113.50 and 51.18

Step by Step Solution

1. Step 1: Write the proportion equation
   82.27 : 113.50 = 51.18 : x
2. Step 2: Convert to fraction form
   82.27/113.50 = 51.18/x
3. Step 3: Cross multiply
   82.27x = 113.50 × 51.18
4. Step 4: Simplify right side
   82.27x = 5,809.21
5. Step 5: Solve for x
   x = 5,809.21/82.27
6. Step 6: Final answer
   x = 70.62