Finding the Fourth Proportional to 33,853.76, 46,723.32 and 21,109

Step by Step Solution

1. Step 1: Write the proportion equation
   33,853.76 : 46,723.32 = 21,109 : x
2. Step 2: Convert to fraction form
   33,853.76/46,723.32 = 21,109/x
3. Step 3: Cross multiply
   33,853.76x = 46,723.32 × 21,109
4. Step 4: Simplify right side
   33,853.76x = 986,282,561.88
5. Step 5: Solve for x
   x = 986,282,561.88/33,853.76
6. Step 6: Final answer
   x = 29,133.62