Finding the Fourth Proportional to 16,443.03, 22,691.43 and 9,369.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,443.03 : 22,691.43 = 9,369.30 : x
2. Step 2: Convert to fraction form
   16,443.03/22,691.43 = 9,369.30/x
3. Step 3: Cross multiply
   16,443.03x = 22,691.43 × 9,369.30
4. Step 4: Simplify right side
   16,443.03x = 212,602,815.10
5. Step 5: Solve for x
   x = 212,602,815.10/16,443.03
6. Step 6: Final answer
   x = 12,929.66