Finding the Fourth Proportional to 143,831.49, 215,747.23 and 50,315.37

Step by Step Solution

1. Step 1: Write the proportion equation
   143,831.49 : 215,747.23 = 50,315.37 : x
2. Step 2: Convert to fraction form
   143,831.49/215,747.23 = 50,315.37/x
3. Step 3: Cross multiply
   143,831.49x = 215,747.23 × 50,315.37
4. Step 4: Simplify right side
   143,831.49x = 10,855,401,703.93
5. Step 5: Solve for x
   x = 10,855,401,703.93/143,831.49
6. Step 6: Final answer
   x = 75,473.05