Finding the Fourth Proportional to 13,488.05, 18,610.31 and 8,182.73

Step by Step Solution

1. Step 1: Write the proportion equation
   13,488.05 : 18,610.31 = 8,182.73 : x
2. Step 2: Convert to fraction form
   13,488.05/18,610.31 = 8,182.73/x
3. Step 3: Cross multiply
   13,488.05x = 18,610.31 × 8,182.73
4. Step 4: Simplify right side
   13,488.05x = 152,283,101.03
5. Step 5: Solve for x
   x = 152,283,101.03/13,488.05
6. Step 6: Final answer
   x = 11,290.22