Finding the Fourth Proportional to 22,086.48, 30,481.20 and 12,658.08

Step by Step Solution

1. Step 1: Write the proportion equation
   22,086.48 : 30,481.20 = 12,658.08 : x
2. Step 2: Convert to fraction form
   22,086.48/30,481.20 = 12,658.08/x
3. Step 3: Cross multiply
   22,086.48x = 30,481.20 × 12,658.08
4. Step 4: Simplify right side
   22,086.48x = 385,833,468.10
5. Step 5: Solve for x
   x = 385,833,468.10/22,086.48
6. Step 6: Final answer
   x = 17,469.22