Finding the Fourth Proportional to 22,028.89, 30,399.44 and 12,470.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,028.89 : 30,399.44 = 12,470.59 : x
2. Step 2: Convert to fraction form
   22,028.89/30,399.44 = 12,470.59/x
3. Step 3: Cross multiply
   22,028.89x = 30,399.44 × 12,470.59
4. Step 4: Simplify right side
   22,028.89x = 379,098,928.12
5. Step 5: Solve for x
   x = 379,098,928.12/22,028.89
6. Step 6: Final answer
   x = 17,209.17