Finding the Fourth Proportional to 22,151.04, 30,573.22 and 12,724.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,151.04 : 30,573.22 = 12,724.80 : x
2. Step 2: Convert to fraction form
   22,151.04/30,573.22 = 12,724.80/x
3. Step 3: Cross multiply
   22,151.04x = 30,573.22 × 12,724.80
4. Step 4: Simplify right side
   22,151.04x = 389,038,109.86
5. Step 5: Solve for x
   x = 389,038,109.86/22,151.04
6. Step 6: Final answer
   x = 17,562.97