Finding the Fourth Proportional to 139,282.50, 209,006.77 and 50,542.93

Step by Step Solution

1. Step 1: Write the proportion equation
   139,282.50 : 209,006.77 = 50,542.93 : x
2. Step 2: Convert to fraction form
   139,282.50/209,006.77 = 50,542.93/x
3. Step 3: Cross multiply
   139,282.50x = 209,006.77 × 50,542.93
4. Step 4: Simplify right side
   139,282.50x = 10,563,814,545.64
5. Step 5: Solve for x
   x = 10,563,814,545.64/139,282.50
6. Step 6: Final answer
   x = 75,844.52