Finding the Fourth Proportional to 33,561.58, 50,309.50 and 13,856.70

Step by Step Solution

1. Step 1: Write the proportion equation
   33,561.58 : 50,309.50 = 13,856.70 : x
2. Step 2: Convert to fraction form
   33,561.58/50,309.50 = 13,856.70/x
3. Step 3: Cross multiply
   33,561.58x = 50,309.50 × 13,856.70
4. Step 4: Simplify right side
   33,561.58x = 697,123,648.65
5. Step 5: Solve for x
   x = 697,123,648.65/33,561.58
6. Step 6: Final answer
   x = 20,771.48