Finding the Fourth Proportional to 139,042.26, 208,579.59 and 50,337.54

Step by Step Solution

1. Step 1: Write the proportion equation
   139,042.26 : 208,579.59 = 50,337.54 : x
2. Step 2: Convert to fraction form
   139,042.26/208,579.59 = 50,337.54/x
3. Step 3: Cross multiply
   139,042.26x = 208,579.59 × 50,337.54
4. Step 4: Simplify right side
   139,042.26x = 10,499,383,454.81
5. Step 5: Solve for x
   x = 10,499,383,454.81/139,042.26
6. Step 6: Final answer
   x = 75,512.17