Finding the Fourth Proportional to 33,105.61, 49,664.54 and 10,920.52

Step by Step Solution

1. Step 1: Write the proportion equation
   33,105.61 : 49,664.54 = 10,920.52 : x
2. Step 2: Convert to fraction form
   33,105.61/49,664.54 = 10,920.52/x
3. Step 3: Cross multiply
   33,105.61x = 49,664.54 × 10,920.52
4. Step 4: Simplify right side
   33,105.61x = 542,362,691.74
5. Step 5: Solve for x
   x = 542,362,691.74/33,105.61
6. Step 6: Final answer
   x = 16,382.80