Finding the Fourth Proportional to 16,396.32, 22,629.83 and 9,681.51

Step by Step Solution

1. Step 1: Write the proportion equation
   16,396.32 : 22,629.83 = 9,681.51 : x
2. Step 2: Convert to fraction form
   16,396.32/22,629.83 = 9,681.51/x
3. Step 3: Cross multiply
   16,396.32x = 22,629.83 × 9,681.51
4. Step 4: Simplify right side
   16,396.32x = 219,090,877.04
5. Step 5: Solve for x
   x = 219,090,877.04/16,396.32
6. Step 6: Final answer
   x = 13,362.20