Finding the Fourth Proportional to 139,036.74, 208,571.34 and 50,332.02

Step by Step Solution

1. Step 1: Write the proportion equation
   139,036.74 : 208,571.34 = 50,332.02 : x
2. Step 2: Convert to fraction form
   139,036.74/208,571.34 = 50,332.02/x
3. Step 3: Cross multiply
   139,036.74x = 208,571.34 × 50,332.02
4. Step 4: Simplify right side
   139,036.74x = 10,497,816,856.31
5. Step 5: Solve for x
   x = 10,497,816,856.31/139,036.74
6. Step 6: Final answer
   x = 75,503.91