Finding the Fourth Proportional to 22,405.86, 30,919.86 and 12,334.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,405.86 : 30,919.86 = 12,334.32 : x
2. Step 2: Convert to fraction form
   22,405.86/30,919.86 = 12,334.32/x
3. Step 3: Cross multiply
   22,405.86x = 30,919.86 × 12,334.32
4. Step 4: Simplify right side
   22,405.86x = 381,375,447.60
5. Step 5: Solve for x
   x = 381,375,447.60/22,405.86
6. Step 6: Final answer
   x = 17,021.24