Finding the Fourth Proportional to 33,111.41, 49,656.58 and 10,920.65

Step by Step Solution

1. Step 1: Write the proportion equation
   33,111.41 : 49,656.58 = 10,920.65 : x
2. Step 2: Convert to fraction form
   33,111.41/49,656.58 = 10,920.65/x
3. Step 3: Cross multiply
   33,111.41x = 49,656.58 × 10,920.65
4. Step 4: Simplify right side
   33,111.41x = 542,281,854.79
5. Step 5: Solve for x
   x = 542,281,854.79/33,111.41
6. Step 6: Final answer
   x = 16,377.49