Finding the Fourth Proportional to 22,022.24, 30,389.72 and 12,591.42

Step by Step Solution

1. Step 1: Write the proportion equation
   22,022.24 : 30,389.72 = 12,591.42 : x
2. Step 2: Convert to fraction form
   22,022.24/30,389.72 = 12,591.42/x
3. Step 3: Cross multiply
   22,022.24x = 30,389.72 × 12,591.42
4. Step 4: Simplify right side
   22,022.24x = 382,649,728.20
5. Step 5: Solve for x
   x = 382,649,728.20/22,022.24
6. Step 6: Final answer
   x = 17,375.60