Finding the Fourth Proportional to 16,253.57, 22,428.27 and 9,178.62

Step by Step Solution

1. Step 1: Write the proportion equation
   16,253.57 : 22,428.27 = 9,178.62 : x
2. Step 2: Convert to fraction form
   16,253.57/22,428.27 = 9,178.62/x
3. Step 3: Cross multiply
   16,253.57x = 22,428.27 × 9,178.62
4. Step 4: Simplify right side
   16,253.57x = 205,860,567.59
5. Step 5: Solve for x
   x = 205,860,567.59/16,253.57
6. Step 6: Final answer
   x = 12,665.56