Finding the Fourth Proportional to 16,379.36, 22,603.56 and 9,308.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,379.36 : 22,603.56 = 9,308.12 : x
2. Step 2: Convert to fraction form
   16,379.36/22,603.56 = 9,308.12/x
3. Step 3: Cross multiply
   16,379.36x = 22,603.56 × 9,308.12
4. Step 4: Simplify right side
   16,379.36x = 210,396,648.91
5. Step 5: Solve for x
   x = 210,396,648.91/16,379.36
6. Step 6: Final answer
   x = 12,845.23