Finding the Fourth Proportional to 13,229.96, 19,834.52 and 9,057.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,229.96 : 19,834.52 = 9,057.32 : x
2. Step 2: Convert to fraction form
   13,229.96/19,834.52 = 9,057.32/x
3. Step 3: Cross multiply
   13,229.96x = 19,834.52 × 9,057.32
4. Step 4: Simplify right side
   13,229.96x = 179,647,575.55
5. Step 5: Solve for x
   x = 179,647,575.55/13,229.96
6. Step 6: Final answer
   x = 13,578.85