Finding the Fourth Proportional to 16,387.32, 22,617.41 and 9,672.51

Step by Step Solution

1. Step 1: Write the proportion equation
   16,387.32 : 22,617.41 = 9,672.51 : x
2. Step 2: Convert to fraction form
   16,387.32/22,617.41 = 9,672.51/x
3. Step 3: Cross multiply
   16,387.32x = 22,617.41 × 9,672.51
4. Step 4: Simplify right side
   16,387.32x = 218,767,076.04
5. Step 5: Solve for x
   x = 218,767,076.04/16,387.32
6. Step 6: Final answer
   x = 13,349.78