Finding the Fourth Proportional to 82,236.78, 113,489.52 and 50,399.54

Step by Step Solution

1. Step 1: Write the proportion equation
   82,236.78 : 113,489.52 = 50,399.54 : x
2. Step 2: Convert to fraction form
   82,236.78/113,489.52 = 50,399.54/x
3. Step 3: Cross multiply
   82,236.78x = 113,489.52 × 50,399.54
4. Step 4: Simplify right side
   82,236.78x = 5,719,819,602.82
5. Step 5: Solve for x
   x = 5,719,819,602.82/82,236.78
6. Step 6: Final answer
   x = 69,553.06