Finding the Fourth Proportional to 82,278.28, 113,546.10 and 50,464.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,278.28 : 113,546.10 = 50,464.72 : x
2. Step 2: Convert to fraction form
   82,278.28/113,546.10 = 50,464.72/x
3. Step 3: Cross multiply
   82,278.28x = 113,546.10 × 50,464.72
4. Step 4: Simplify right side
   82,278.28x = 5,730,072,143.59
5. Step 5: Solve for x
   x = 5,730,072,143.59/82,278.28
6. Step 6: Final answer
   x = 69,642.59