Finding the Fourth Proportional to 22,234.59, 30,679.47 and 12,674.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,234.59 : 30,679.47 = 12,674.30 : x
2. Step 2: Convert to fraction form
   22,234.59/30,679.47 = 12,674.30/x
3. Step 3: Cross multiply
   22,234.59x = 30,679.47 × 12,674.30
4. Step 4: Simplify right side
   22,234.59x = 388,840,653.22
5. Step 5: Solve for x
   x = 388,840,653.22/22,234.59
6. Step 6: Final answer
   x = 17,488.10