Finding the Fourth Proportional to 11,018.62, 16,559.52 and 10,271.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,018.62 : 16,559.52 = 10,271.80 : x
2. Step 2: Convert to fraction form
   11,018.62/16,559.52 = 10,271.80/x
3. Step 3: Cross multiply
   11,018.62x = 16,559.52 × 10,271.80
4. Step 4: Simplify right side
   11,018.62x = 170,096,077.54
5. Step 5: Solve for x
   x = 170,096,077.54/11,018.62
6. Step 6: Final answer
   x = 15,437.15