Finding the Fourth Proportional to 16,339.59, 24,508.89 and 9,721.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,339.59 : 24,508.89 = 9,721.47 : x
2. Step 2: Convert to fraction form
   16,339.59/24,508.89 = 9,721.47/x
3. Step 3: Cross multiply
   16,339.59x = 24,508.89 × 9,721.47
4. Step 4: Simplify right side
   16,339.59x = 238,262,438.87
5. Step 5: Solve for x
   x = 238,262,438.87/16,339.59
6. Step 6: Final answer
   x = 14,581.91