Finding the Fourth Proportional to 33,811.24, 50,721.72 and 10,439.52

Step by Step Solution

1. Step 1: Write the proportion equation
   33,811.24 : 50,721.72 = 10,439.52 : x
2. Step 2: Convert to fraction form
   33,811.24/50,721.72 = 10,439.52/x
3. Step 3: Cross multiply
   33,811.24x = 50,721.72 × 10,439.52
4. Step 4: Simplify right side
   33,811.24x = 529,510,410.37
5. Step 5: Solve for x
   x = 529,510,410.37/33,811.24
6. Step 6: Final answer
   x = 15,660.78