Finding the Fourth Proportional to 11,144.80, 16,713.56 and 5,219.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,144.80 : 16,713.56 = 5,219.86 : x
2. Step 2: Convert to fraction form
   11,144.80/16,713.56 = 5,219.86/x
3. Step 3: Cross multiply
   11,144.80x = 16,713.56 × 5,219.86
4. Step 4: Simplify right side
   11,144.80x = 87,242,443.30
5. Step 5: Solve for x
   x = 87,242,443.30/11,144.80
6. Step 6: Final answer
   x = 7,828.09