Finding the Fourth Proportional to 22,078.13, 30,467.81 and 12,647.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,078.13 : 30,467.81 = 12,647.30 : x
2. Step 2: Convert to fraction form
   22,078.13/30,467.81 = 12,647.30/x
3. Step 3: Cross multiply
   22,078.13x = 30,467.81 × 12,647.30
4. Step 4: Simplify right side
   22,078.13x = 385,335,412.69
5. Step 5: Solve for x
   x = 385,335,412.69/22,078.13
6. Step 6: Final answer
   x = 17,453.27