Finding the Fourth Proportional to 82,259.28, 113,519.88 and 50,445.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,259.28 : 113,519.88 = 50,445.72 : x
2. Step 2: Convert to fraction form
   82,259.28/113,519.88 = 50,445.72/x
3. Step 3: Cross multiply
   82,259.28x = 113,519.88 × 50,445.72
4. Step 4: Simplify right side
   82,259.28x = 5,726,592,080.91
5. Step 5: Solve for x
   x = 5,726,592,080.91/82,259.28
6. Step 6: Final answer
   x = 69,616.37