Finding the Fourth Proportional to 33,767.35, 50,682.78 and 17,139.30

Step by Step Solution

1. Step 1: Write the proportion equation
   33,767.35 : 50,682.78 = 17,139.30 : x
2. Step 2: Convert to fraction form
   33,767.35/50,682.78 = 17,139.30/x
3. Step 3: Cross multiply
   33,767.35x = 50,682.78 × 17,139.30
4. Step 4: Simplify right side
   33,767.35x = 868,667,181.19
5. Step 5: Solve for x
   x = 868,667,181.19/33,767.35
6. Step 6: Final answer
   x = 25,725.06