Finding the Fourth Proportional to 22,162.37, 30,589.31 and 12,736.40

Step by Step Solution

1. Step 1: Write the proportion equation
   22,162.37 : 30,589.31 = 12,736.40 : x
2. Step 2: Convert to fraction form
   22,162.37/30,589.31 = 12,736.40/x
3. Step 3: Cross multiply
   22,162.37x = 30,589.31 × 12,736.40
4. Step 4: Simplify right side
   22,162.37x = 389,597,566.78
5. Step 5: Solve for x
   x = 389,597,566.78/22,162.37
6. Step 6: Final answer
   x = 17,579.24