Finding the Fourth Proportional to 82.47, 113.83 and 49.76

Step by Step Solution

1. Step 1: Write the proportion equation
   82.47 : 113.83 = 49.76 : x
2. Step 2: Convert to fraction form
   82.47/113.83 = 49.76/x
3. Step 3: Cross multiply
   82.47x = 113.83 × 49.76
4. Step 4: Simplify right side
   82.47x = 5,663.49
5. Step 5: Solve for x
   x = 5,663.49/82.47
6. Step 6: Final answer
   x = 68.67