Finding the Fourth Proportional to 22,408.64, 30,922.56 and 12,335.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,408.64 : 30,922.56 = 12,335.12 : x
2. Step 2: Convert to fraction form
   22,408.64/30,922.56 = 12,335.12/x
3. Step 3: Cross multiply
   22,408.64x = 30,922.56 × 12,335.12
4. Step 4: Simplify right side
   22,408.64x = 381,433,488.31
5. Step 5: Solve for x
   x = 381,433,488.31/22,408.64
6. Step 6: Final answer
   x = 17,021.72