Finding the Fourth Proportional to 22,406.64, 30,919.80 and 12,333.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,406.64 : 30,919.80 = 12,333.12 : x
2. Step 2: Convert to fraction form
   22,406.64/30,919.80 = 12,333.12/x
3. Step 3: Cross multiply
   22,406.64x = 30,919.80 × 12,333.12
4. Step 4: Simplify right side
   22,406.64x = 381,337,603.78
5. Step 5: Solve for x
   x = 381,337,603.78/22,406.64
6. Step 6: Final answer
   x = 17,018.96