Finding the Fourth Proportional to 33,009.42, 49,513.63 and 13,287.49

Step by Step Solution

1. Step 1: Write the proportion equation
   33,009.42 : 49,513.63 = 13,287.49 : x
2. Step 2: Convert to fraction form
   33,009.42/49,513.63 = 13,287.49/x
3. Step 3: Cross multiply
   33,009.42x = 49,513.63 × 13,287.49
4. Step 4: Simplify right side
   33,009.42x = 657,912,009.91
5. Step 5: Solve for x
   x = 657,912,009.91/33,009.42
6. Step 6: Final answer
   x = 19,931.04