Finding the Fourth Proportional to 139,282.53, 209,006.78 and 50,542.94

Step by Step Solution

1. Step 1: Write the proportion equation
   139,282.53 : 209,006.78 = 50,542.94 : x
2. Step 2: Convert to fraction form
   139,282.53/209,006.78 = 50,542.94/x
3. Step 3: Cross multiply
   139,282.53x = 209,006.78 × 50,542.94
4. Step 4: Simplify right side
   139,282.53x = 10,563,817,141.13
5. Step 5: Solve for x
   x = 10,563,817,141.13/139,282.53
6. Step 6: Final answer
   x = 75,844.52