Finding the Fourth Proportional to 33,119.89, 49,672.78 and 10,928.05

Step by Step Solution

1. Step 1: Write the proportion equation
   33,119.89 : 49,672.78 = 10,928.05 : x
2. Step 2: Convert to fraction form
   33,119.89/49,672.78 = 10,928.05/x
3. Step 3: Cross multiply
   33,119.89x = 49,672.78 × 10,928.05
4. Step 4: Simplify right side
   33,119.89x = 542,826,471.98
5. Step 5: Solve for x
   x = 542,826,471.98/33,119.89
6. Step 6: Final answer
   x = 16,389.74