Finding the Fourth Proportional to 83,674.78, 115,470.94 and 50,140.78

Step by Step Solution

1. Step 1: Write the proportion equation
   83,674.78 : 115,470.94 = 50,140.78 : x
2. Step 2: Convert to fraction form
   83,674.78/115,470.94 = 50,140.78/x
3. Step 3: Cross multiply
   83,674.78x = 115,470.94 × 50,140.78
4. Step 4: Simplify right side
   83,674.78x = 5,789,802,998.93
5. Step 5: Solve for x
   x = 5,789,802,998.93/83,674.78
6. Step 6: Final answer
   x = 69,194.12