Finding the Fourth Proportional to 16,389.83, 22,626.20 and 9,677.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.83 : 22,626.20 = 9,677.56 : x
2. Step 2: Convert to fraction form
   16,389.83/22,626.20 = 9,677.56/x
3. Step 3: Cross multiply
   16,389.83x = 22,626.20 × 9,677.56
4. Step 4: Simplify right side
   16,389.83x = 218,966,408.07
5. Step 5: Solve for x
   x = 218,966,408.07/16,389.83
6. Step 6: Final answer
   x = 13,359.90