Finding the Fourth Proportional to 22,078.69, 30,468.89 and 12,647.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,078.69 : 30,468.89 = 12,647.25 : x
2. Step 2: Convert to fraction form
   22,078.69/30,468.89 = 12,647.25/x
3. Step 3: Cross multiply
   22,078.69x = 30,468.89 × 12,647.25
4. Step 4: Simplify right side
   22,078.69x = 385,347,700.67
5. Step 5: Solve for x
   x = 385,347,700.67/22,078.69
6. Step 6: Final answer
   x = 17,453.38