Finding the Fourth Proportional to 22,078.58, 30,469.24 and 12,648.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,078.58 : 30,469.24 = 12,648.96 : x
2. Step 2: Convert to fraction form
   22,078.58/30,469.24 = 12,648.96/x
3. Step 3: Cross multiply
   22,078.58x = 30,469.24 × 12,648.96
4. Step 4: Simplify right side
   22,078.58x = 385,404,328.06
5. Step 5: Solve for x
   x = 385,404,328.06/22,078.58
6. Step 6: Final answer
   x = 17,456.03