Finding the Fourth Proportional to 139,061.94, 208,469.15 and 50,295.73

Step by Step Solution

1. Step 1: Write the proportion equation
   139,061.94 : 208,469.15 = 50,295.73 : x
2. Step 2: Convert to fraction form
   139,061.94/208,469.15 = 50,295.73/x
3. Step 3: Cross multiply
   139,061.94x = 208,469.15 × 50,295.73
4. Step 4: Simplify right side
   139,061.94x = 10,485,108,081.73
5. Step 5: Solve for x
   x = 10,485,108,081.73/139,061.94
6. Step 6: Final answer
   x = 75,398.83