Finding the Fourth Proportional to 139,561.86, 209,362.23 and 50,798.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139,561.86 : 209,362.23 = 50,798.82 : x
2. Step 2: Convert to fraction form
   139,561.86/209,362.23 = 50,798.82/x
3. Step 3: Cross multiply
   139,561.86x = 209,362.23 × 50,798.82
4. Step 4: Simplify right side
   139,561.86x = 10,635,354,236.57
5. Step 5: Solve for x
   x = 10,635,354,236.57/139,561.86
6. Step 6: Final answer
   x = 76,205.31