Finding the Fourth Proportional to 22,131.86, 30,541.00 and 12,571.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,131.86 : 30,541.00 = 12,571.72 : x
2. Step 2: Convert to fraction form
   22,131.86/30,541.00 = 12,571.72/x
3. Step 3: Cross multiply
   22,131.86x = 30,541.00 × 12,571.72
4. Step 4: Simplify right side
   22,131.86x = 383,952,859.26
5. Step 5: Solve for x
   x = 383,952,859.26/22,131.86
6. Step 6: Final answer
   x = 17,348.42