Finding the Fourth Proportional to 82.02, 113.20 and 50.52

Step by Step Solution

1. Step 1: Write the proportion equation
   82.02 : 113.20 = 50.52 : x
2. Step 2: Convert to fraction form
   82.02/113.20 = 50.52/x
3. Step 3: Cross multiply
   82.02x = 113.20 × 50.52
4. Step 4: Simplify right side
   82.02x = 5,718.86
5. Step 5: Solve for x
   x = 5,718.86/82.02
6. Step 6: Final answer
   x = 69.73