Finding the Fourth Proportional to 22,016.47, 30,384.24 and 12,456.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,016.47 : 30,384.24 = 12,456.37 : x
2. Step 2: Convert to fraction form
   22,016.47/30,384.24 = 12,456.37/x
3. Step 3: Cross multiply
   22,016.47x = 30,384.24 × 12,456.37
4. Step 4: Simplify right side
   22,016.47x = 378,477,335.61
5. Step 5: Solve for x
   x = 378,477,335.61/22,016.47
6. Step 6: Final answer
   x = 17,190.65