Finding the Fourth Proportional to 22,397.79, 30,908.28 and 12,326.22

Step by Step Solution

1. Step 1: Write the proportion equation
   22,397.79 : 30,908.28 = 12,326.22 : x
2. Step 2: Convert to fraction form
   22,397.79/30,908.28 = 12,326.22/x
3. Step 3: Cross multiply
   22,397.79x = 30,908.28 × 12,326.22
4. Step 4: Simplify right side
   22,397.79x = 380,982,259.10
5. Step 5: Solve for x
   x = 380,982,259.10/22,397.79
6. Step 6: Final answer
   x = 17,009.81