Finding the Fourth Proportional to 139,056.28, 208,600.60 and 50,351.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,056.28 : 208,600.60 = 50,351.56 : x
2. Step 2: Convert to fraction form
   139,056.28/208,600.60 = 50,351.56/x
3. Step 3: Cross multiply
   139,056.28x = 208,600.60 × 50,351.56
4. Step 4: Simplify right side
   139,056.28x = 10,503,365,626.94
5. Step 5: Solve for x
   x = 10,503,365,626.94/139,056.28
6. Step 6: Final answer
   x = 75,533.20