Finding the Fourth Proportional to 33,535.32, 50,310.42 and 12,759

Step by Step Solution

1. Step 1: Write the proportion equation
   33,535.32 : 50,310.42 = 12,759 : x
2. Step 2: Convert to fraction form
   33,535.32/50,310.42 = 12,759/x
3. Step 3: Cross multiply
   33,535.32x = 50,310.42 × 12,759
4. Step 4: Simplify right side
   33,535.32x = 641,910,648.78
5. Step 5: Solve for x
   x = 641,910,648.78/33,535.32
6. Step 6: Final answer
   x = 19,141.33