Finding the Fourth Proportional to 13,488.27, 18,610.65 and 8,182.95

Step by Step Solution

1. Step 1: Write the proportion equation
   13,488.27 : 18,610.65 = 8,182.95 : x
2. Step 2: Convert to fraction form
   13,488.27/18,610.65 = 8,182.95/x
3. Step 3: Cross multiply
   13,488.27x = 18,610.65 × 8,182.95
4. Step 4: Simplify right side
   13,488.27x = 152,290,018.42
5. Step 5: Solve for x
   x = 152,290,018.42/13,488.27
6. Step 6: Final answer
   x = 11,290.55