Finding the Fourth Proportional to 22,407.29, 30,921.82 and 12,335.51

Step by Step Solution

1. Step 1: Write the proportion equation
   22,407.29 : 30,921.82 = 12,335.51 : x
2. Step 2: Convert to fraction form
   22,407.29/30,921.82 = 12,335.51/x
3. Step 3: Cross multiply
   22,407.29x = 30,921.82 × 12,335.51
4. Step 4: Simplify right side
   22,407.29x = 381,436,466.29
5. Step 5: Solve for x
   x = 381,436,466.29/22,407.29
6. Step 6: Final answer
   x = 17,022.87