Finding the Fourth Proportional to 82,871.20, 114,359.21 and 50,659.76

Step by Step Solution

1. Step 1: Write the proportion equation
   82,871.20 : 114,359.21 = 50,659.76 : x
2. Step 2: Convert to fraction form
   82,871.20/114,359.21 = 50,659.76/x
3. Step 3: Cross multiply
   82,871.20x = 114,359.21 × 50,659.76
4. Step 4: Simplify right side
   82,871.20x = 5,793,410,132.39
5. Step 5: Solve for x
   x = 5,793,410,132.39/82,871.20
6. Step 6: Final answer
   x = 69,908.61