Finding the Fourth Proportional to 16,697.22, 23,018.42 and 10,320.21

Step by Step Solution

1. Step 1: Write the proportion equation
   16,697.22 : 23,018.42 = 10,320.21 : x
2. Step 2: Convert to fraction form
   16,697.22/23,018.42 = 10,320.21/x
3. Step 3: Cross multiply
   16,697.22x = 23,018.42 × 10,320.21
4. Step 4: Simplify right side
   16,697.22x = 237,554,788.58
5. Step 5: Solve for x
   x = 237,554,788.58/16,697.22
6. Step 6: Final answer
   x = 14,227.21