Finding the Fourth Proportional to 16,010.72, 24,012.84 and 4,321.20

Step by Step Solution

1. Step 1: Write the proportion equation
   16,010.72 : 24,012.84 = 4,321.20 : x
2. Step 2: Convert to fraction form
   16,010.72/24,012.84 = 4,321.20/x
3. Step 3: Cross multiply
   16,010.72x = 24,012.84 × 4,321.20
4. Step 4: Simplify right side
   16,010.72x = 103,764,284.21
5. Step 5: Solve for x
   x = 103,764,284.21/16,010.72
6. Step 6: Final answer
   x = 6,480.93