Finding the Fourth Proportional to 22,398.12, 30,908.73 and 12,326.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,398.12 : 30,908.73 = 12,326.55 : x
2. Step 2: Convert to fraction form
   22,398.12/30,908.73 = 12,326.55/x
3. Step 3: Cross multiply
   22,398.12x = 30,908.73 × 12,326.55
4. Step 4: Simplify right side
   22,398.12x = 380,997,901.43
5. Step 5: Solve for x
   x = 380,997,901.43/22,398.12
6. Step 6: Final answer
   x = 17,010.26