Finding the Fourth Proportional to 33,291.63, 49,931.28 and 13,299.42

Step by Step Solution

1. Step 1: Write the proportion equation
   33,291.63 : 49,931.28 = 13,299.42 : x
2. Step 2: Convert to fraction form
   33,291.63/49,931.28 = 13,299.42/x
3. Step 3: Cross multiply
   33,291.63x = 49,931.28 × 13,299.42
4. Step 4: Simplify right side
   33,291.63x = 664,057,063.86
5. Step 5: Solve for x
   x = 664,057,063.86/33,291.63
6. Step 6: Final answer
   x = 19,946.67