Finding the Fourth Proportional to 33,131.34, 49,697.04 and 8,171.80

Step by Step Solution

1. Step 1: Write the proportion equation
   33,131.34 : 49,697.04 = 8,171.80 : x
2. Step 2: Convert to fraction form
   33,131.34/49,697.04 = 8,171.80/x
3. Step 3: Cross multiply
   33,131.34x = 49,697.04 × 8,171.80
4. Step 4: Simplify right side
   33,131.34x = 406,114,271.47
5. Step 5: Solve for x
   x = 406,114,271.47/33,131.34
6. Step 6: Final answer
   x = 12,257.71