Finding the Fourth Proportional to 16,411.88, 22,651.20 and 9,697.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,411.88 : 22,651.20 = 9,697.16 : x
2. Step 2: Convert to fraction form
   16,411.88/22,651.20 = 9,697.16/x
3. Step 3: Cross multiply
   16,411.88x = 22,651.20 × 9,697.16
4. Step 4: Simplify right side
   16,411.88x = 219,652,310.59
5. Step 5: Solve for x
   x = 219,652,310.59/16,411.88
6. Step 6: Final answer
   x = 13,383.74