Finding the Fourth Proportional to 33,279.33, 49,904.42 and 12,488.25

Step by Step Solution

1. Step 1: Write the proportion equation
   33,279.33 : 49,904.42 = 12,488.25 : x
2. Step 2: Convert to fraction form
   33,279.33/49,904.42 = 12,488.25/x
3. Step 3: Cross multiply
   33,279.33x = 49,904.42 × 12,488.25
4. Step 4: Simplify right side
   33,279.33x = 623,218,810.62
5. Step 5: Solve for x
   x = 623,218,810.62/33,279.33
6. Step 6: Final answer
   x = 18,726.90