Finding the Fourth Proportional to 22,511.31, 31,067.48 and 12,441.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,511.31 : 31,067.48 = 12,441.72 : x
2. Step 2: Convert to fraction form
   22,511.31/31,067.48 = 12,441.72/x
3. Step 3: Cross multiply
   22,511.31x = 31,067.48 × 12,441.72
4. Step 4: Simplify right side
   22,511.31x = 386,532,669.72
5. Step 5: Solve for x
   x = 386,532,669.72/22,511.31
6. Step 6: Final answer
   x = 17,170.60