Finding the Fourth Proportional to 22,396.20, 30,906.78 and 12,325.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,396.20 : 30,906.78 = 12,325.37 : x
2. Step 2: Convert to fraction form
   22,396.20/30,906.78 = 12,325.37/x
3. Step 3: Cross multiply
   22,396.20x = 30,906.78 × 12,325.37
4. Step 4: Simplify right side
   22,396.20x = 380,937,499.01
5. Step 5: Solve for x
   x = 380,937,499.01/22,396.20
6. Step 6: Final answer
   x = 17,009.02