Finding the Fourth Proportional to 71,144.72, 106,748.04 and 33,731

Step by Step Solution

1. Step 1: Write the proportion equation
   71,144.72 : 106,748.04 = 33,731 : x
2. Step 2: Convert to fraction form
   71,144.72/106,748.04 = 33,731/x
3. Step 3: Cross multiply
   71,144.72x = 106,748.04 × 33,731
4. Step 4: Simplify right side
   71,144.72x = 3,600,718,137.24
5. Step 5: Solve for x
   x = 3,600,718,137.24/71,144.72
6. Step 6: Final answer
   x = 50,611.18