Finding the Fourth Proportional to 14,109.33, 21,161.84 and 3,721.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,109.33 : 21,161.84 = 3,721.89 : x
2. Step 2: Convert to fraction form
   14,109.33/21,161.84 = 3,721.89/x
3. Step 3: Cross multiply
   14,109.33x = 21,161.84 × 3,721.89
4. Step 4: Simplify right side
   14,109.33x = 78,762,022.07
5. Step 5: Solve for x
   x = 78,762,022.07/14,109.33
6. Step 6: Final answer
   x = 5,582.27