Finding the Fourth Proportional to 33,256.10, 49,859.35 and 20,105.70

Step by Step Solution

1. Step 1: Write the proportion equation
   33,256.10 : 49,859.35 = 20,105.70 : x
2. Step 2: Convert to fraction form
   33,256.10/49,859.35 = 20,105.70/x
3. Step 3: Cross multiply
   33,256.10x = 49,859.35 × 20,105.70
4. Step 4: Simplify right side
   33,256.10x = 1,002,457,133.30
5. Step 5: Solve for x
   x = 1,002,457,133.30/33,256.10
6. Step 6: Final answer
   x = 30,143.56