Finding the Fourth Proportional to 22,406.03, 30,919.31 and 12,335.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,406.03 : 30,919.31 = 12,335.12 : x
2. Step 2: Convert to fraction form
   22,406.03/30,919.31 = 12,335.12/x
3. Step 3: Cross multiply
   22,406.03x = 30,919.31 × 12,335.12
4. Step 4: Simplify right side
   22,406.03x = 381,393,182.90
5. Step 5: Solve for x
   x = 381,393,182.90/22,406.03
6. Step 6: Final answer
   x = 17,021.90