Finding the Fourth Proportional to 16,009.72, 24,011.34 and 4,320.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,009.72 : 24,011.34 = 4,320.20 : x
2. Step 2: Convert to fraction form
   16,009.72/24,011.34 = 4,320.20/x
3. Step 3: Cross multiply
   16,009.72x = 24,011.34 × 4,320.20
4. Step 4: Simplify right side
   16,009.72x = 103,733,834.90
5. Step 5: Solve for x
   x = 103,733,834.90/16,009.72
6. Step 6: Final answer
   x = 6,479.43