Finding the Fourth Proportional to 22,469.96, 31,008.03 and 12,399.35

Step by Step Solution

1. Step 1: Write the proportion equation
   22,469.96 : 31,008.03 = 12,399.35 : x
2. Step 2: Convert to fraction form
   22,469.96/31,008.03 = 12,399.35/x
3. Step 3: Cross multiply
   22,469.96x = 31,008.03 × 12,399.35
4. Step 4: Simplify right side
   22,469.96x = 384,479,416.78
5. Step 5: Solve for x
   x = 384,479,416.78/22,469.96
6. Step 6: Final answer
   x = 17,110.82