Finding the Fourth Proportional to 16,216.49, 22,379.05 and 9,504.02

Step by Step Solution

1. Step 1: Write the proportion equation
   16,216.49 : 22,379.05 = 9,504.02 : x
2. Step 2: Convert to fraction form
   16,216.49/22,379.05 = 9,504.02/x
3. Step 3: Cross multiply
   16,216.49x = 22,379.05 × 9,504.02
4. Step 4: Simplify right side
   16,216.49x = 212,691,006.61
5. Step 5: Solve for x
   x = 212,691,006.61/16,216.49
6. Step 6: Final answer
   x = 13,115.72