Finding the Fourth Proportional to 33,300.80, 49,945.68 and 9,921.76

Step by Step Solution

1. Step 1: Write the proportion equation
   33,300.80 : 49,945.68 = 9,921.76 : x
2. Step 2: Convert to fraction form
   33,300.80/49,945.68 = 9,921.76/x
3. Step 3: Cross multiply
   33,300.80x = 49,945.68 × 9,921.76
4. Step 4: Simplify right side
   33,300.80x = 495,549,050.00
5. Step 5: Solve for x
   x = 495,549,050.00/33,300.80
6. Step 6: Final answer
   x = 14,881.00