Finding the Fourth Proportional to 22,379.48, 30,884.46 and 12,308.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,379.48 : 30,884.46 = 12,308.69 : x
2. Step 2: Convert to fraction form
   22,379.48/30,884.46 = 12,308.69/x
3. Step 3: Cross multiply
   22,379.48x = 30,884.46 × 12,308.69
4. Step 4: Simplify right side
   22,379.48x = 380,147,205.14
5. Step 5: Solve for x
   x = 380,147,205.14/22,379.48
6. Step 6: Final answer
   x = 16,986.41