Finding the Fourth Proportional to 22,672.58, 31,282.35 and 13,235.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,672.58 : 31,282.35 = 13,235.72 : x
2. Step 2: Convert to fraction form
   22,672.58/31,282.35 = 13,235.72/x
3. Step 3: Cross multiply
   22,672.58x = 31,282.35 × 13,235.72
4. Step 4: Simplify right side
   22,672.58x = 414,044,425.54
5. Step 5: Solve for x
   x = 414,044,425.54/22,672.58
6. Step 6: Final answer
   x = 18,261.90