Finding the Fourth Proportional to 22,292.69, 30,763.87 and 12,221.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,292.69 : 30,763.87 = 12,221.48 : x
2. Step 2: Convert to fraction form
   22,292.69/30,763.87 = 12,221.48/x
3. Step 3: Cross multiply
   22,292.69x = 30,763.87 × 12,221.48
4. Step 4: Simplify right side
   22,292.69x = 375,980,068.28
5. Step 5: Solve for x
   x = 375,980,068.28/22,292.69
6. Step 6: Final answer
   x = 16,865.63