Finding the Fourth Proportional to 82,818.28, 124,176.78 and 40,644.82

Step by Step Solution

1. Step 1: Write the proportion equation
   82,818.28 : 124,176.78 = 40,644.82 : x
2. Step 2: Convert to fraction form
   82,818.28/124,176.78 = 40,644.82/x
3. Step 3: Cross multiply
   82,818.28x = 124,176.78 × 40,644.82
4. Step 4: Simplify right side
   82,818.28x = 5,047,142,871.28
5. Step 5: Solve for x
   x = 5,047,142,871.28/82,818.28
6. Step 6: Final answer
   x = 60,942.38