Finding the Fourth Proportional to 22,360.50, 30,857.55 and 12,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,360.50 : 30,857.55 = 12,424.50 : x
2. Step 2: Convert to fraction form
   22,360.50/30,857.55 = 12,424.50/x
3. Step 3: Cross multiply
   22,360.50x = 30,857.55 × 12,424.50
4. Step 4: Simplify right side
   22,360.50x = 383,389,629.98
5. Step 5: Solve for x
   x = 383,389,629.98/22,360.50
6. Step 6: Final answer
   x = 17,145.84