Finding the Fourth Proportional to 22,399.74, 30,911.67 and 12,463.74

Step by Step Solution

1. Step 1: Write the proportion equation
   22,399.74 : 30,911.67 = 12,463.74 : x
2. Step 2: Convert to fraction form
   22,399.74/30,911.67 = 12,463.74/x
3. Step 3: Cross multiply
   22,399.74x = 30,911.67 × 12,463.74
4. Step 4: Simplify right side
   22,399.74x = 385,275,017.85
5. Step 5: Solve for x
   x = 385,275,017.85/22,399.74
6. Step 6: Final answer
   x = 17,199.98