Finding the Fourth Proportional to 22,421.91, 30,942.71 and 12,350.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,421.91 : 30,942.71 = 12,350.78 : x
2. Step 2: Convert to fraction form
   22,421.91/30,942.71 = 12,350.78/x
3. Step 3: Cross multiply
   22,421.91x = 30,942.71 × 12,350.78
4. Step 4: Simplify right side
   22,421.91x = 382,166,549.70
5. Step 5: Solve for x
   x = 382,166,549.70/22,421.91
6. Step 6: Final answer
   x = 17,044.33