Finding the Fourth Proportional to 33,140.79, 49,698.37 and 10,948.21

Step by Step Solution

1. Step 1: Write the proportion equation
   33,140.79 : 49,698.37 = 10,948.21 : x
2. Step 2: Convert to fraction form
   33,140.79/49,698.37 = 10,948.21/x
3. Step 3: Cross multiply
   33,140.79x = 49,698.37 × 10,948.21
4. Step 4: Simplify right side
   33,140.79x = 544,108,039.80
5. Step 5: Solve for x
   x = 544,108,039.80/33,140.79
6. Step 6: Final answer
   x = 16,418.08