Finding the Fourth Proportional to 71,429.28, 107,161.77 and 50,410.35

Step by Step Solution

1. Step 1: Write the proportion equation
   71,429.28 : 107,161.77 = 50,410.35 : x
2. Step 2: Convert to fraction form
   71,429.28/107,161.77 = 50,410.35/x
3. Step 3: Cross multiply
   71,429.28x = 107,161.77 × 50,410.35
4. Step 4: Simplify right side
   71,429.28x = 5,402,062,332.32
5. Step 5: Solve for x
   x = 5,402,062,332.32/71,429.28
6. Step 6: Final answer
   x = 75,628.12