Finding the Fourth Proportional to 139,704.03, 209,429.67 and 50,936.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,704.03 : 209,429.67 = 50,936.76 : x
2. Step 2: Convert to fraction form
   139,704.03/209,429.67 = 50,936.76/x
3. Step 3: Cross multiply
   139,704.03x = 209,429.67 × 50,936.76
4. Step 4: Simplify right side
   139,704.03x = 10,667,669,028.68
5. Step 5: Solve for x
   x = 10,667,669,028.68/139,704.03
6. Step 6: Final answer
   x = 76,359.06