Finding the Fourth Proportional to 22,046.91, 30,426.62 and 12,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,046.91 : 30,426.62 = 12,488.50 : x
2. Step 2: Convert to fraction form
   22,046.91/30,426.62 = 12,488.50/x
3. Step 3: Cross multiply
   22,046.91x = 30,426.62 × 12,488.50
4. Step 4: Simplify right side
   22,046.91x = 379,982,843.87
5. Step 5: Solve for x
   x = 379,982,843.87/22,046.91
6. Step 6: Final answer
   x = 17,235.20