Finding the Fourth Proportional to 22,571.34, 31,148.37 and 12,635.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,571.34 : 31,148.37 = 12,635.34 : x
2. Step 2: Convert to fraction form
   22,571.34/31,148.37 = 12,635.34/x
3. Step 3: Cross multiply
   22,571.34x = 31,148.37 × 12,635.34
4. Step 4: Simplify right side
   22,571.34x = 393,570,245.40
5. Step 5: Solve for x
   x = 393,570,245.40/22,571.34
6. Step 6: Final answer
   x = 17,436.72