Finding the Fourth Proportional to 33,086.72, 49,628.96 and 8,126.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,086.72 : 49,628.96 = 8,126.72 : x
2. Step 2: Convert to fraction form
   33,086.72/49,628.96 = 8,126.72/x
3. Step 3: Cross multiply
   33,086.72x = 49,628.96 × 8,126.72
4. Step 4: Simplify right side
   33,086.72x = 403,320,661.81
5. Step 5: Solve for x
   x = 403,320,661.81/33,086.72
6. Step 6: Final answer
   x = 12,189.80