Finding the Fourth Proportional to 22,342.10, 30,830.09 and 12,270.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,342.10 : 30,830.09 = 12,270.42 : x
2. Step 2: Convert to fraction form
   22,342.10/30,830.09 = 12,270.42/x
3. Step 3: Cross multiply
   22,342.10x = 30,830.09 × 12,270.42
4. Step 4: Simplify right side
   22,342.10x = 378,298,091.59
5. Step 5: Solve for x
   x = 378,298,091.59/22,342.10
6. Step 6: Final answer
   x = 16,932.08