Finding the Fourth Proportional to 13,825.82, 19,078.61 and 8,520.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,825.82 : 19,078.61 = 8,520.73 : x
2. Step 2: Convert to fraction form
   13,825.82/19,078.61 = 8,520.73/x
3. Step 3: Cross multiply
   13,825.82x = 19,078.61 × 8,520.73
4. Step 4: Simplify right side
   13,825.82x = 162,563,594.29
5. Step 5: Solve for x
   x = 162,563,594.29/13,825.82
6. Step 6: Final answer
   x = 11,757.97