Finding the Fourth Proportional to 33,011.43, 49,531.72 and 13,328.43

Step by Step Solution

1. Step 1: Write the proportion equation
   33,011.43 : 49,531.72 = 13,328.43 : x
2. Step 2: Convert to fraction form
   33,011.43/49,531.72 = 13,328.43/x
3. Step 3: Cross multiply
   33,011.43x = 49,531.72 × 13,328.43
4. Step 4: Simplify right side
   33,011.43x = 660,180,062.80
5. Step 5: Solve for x
   x = 660,180,062.80/33,011.43
6. Step 6: Final answer
   x = 19,998.53