Finding the Fourth Proportional to 71,426.28, 107,157.27 and 50,407.35

Step by Step Solution

1. Step 1: Write the proportion equation
   71,426.28 : 107,157.27 = 50,407.35 : x
2. Step 2: Convert to fraction form
   71,426.28/107,157.27 = 50,407.35/x
3. Step 3: Cross multiply
   71,426.28x = 107,157.27 × 50,407.35
4. Step 4: Simplify right side
   71,426.28x = 5,401,513,898.77
5. Step 5: Solve for x
   x = 5,401,513,898.77/71,426.28
6. Step 6: Final answer
   x = 75,623.62