Finding the Fourth Proportional to 33,533.32, 50,307.42 and 12,757

Step by Step Solution

1. Step 1: Write the proportion equation
   33,533.32 : 50,307.42 = 12,757 : x
2. Step 2: Convert to fraction form
   33,533.32/50,307.42 = 12,757/x
3. Step 3: Cross multiply
   33,533.32x = 50,307.42 × 12,757
4. Step 4: Simplify right side
   33,533.32x = 641,771,756.94
5. Step 5: Solve for x
   x = 641,771,756.94/33,533.32
6. Step 6: Final answer
   x = 19,138.33