Finding the Fourth Proportional to 22,211.62, 30,653.78 and 12,651.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,211.62 : 30,653.78 = 12,651.91 : x
2. Step 2: Convert to fraction form
   22,211.62/30,653.78 = 12,651.91/x
3. Step 3: Cross multiply
   22,211.62x = 30,653.78 × 12,651.91
4. Step 4: Simplify right side
   22,211.62x = 387,828,865.72
5. Step 5: Solve for x
   x = 387,828,865.72/22,211.62
6. Step 6: Final answer
   x = 17,460.63