Finding the Fourth Proportional to 8,482.59, 12,743.76 and 8,003.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,482.59 : 12,743.76 = 8,003.30 : x
2. Step 2: Convert to fraction form
   8,482.59/12,743.76 = 8,003.30/x
3. Step 3: Cross multiply
   8,482.59x = 12,743.76 × 8,003.30
4. Step 4: Simplify right side
   8,482.59x = 101,992,134.41
5. Step 5: Solve for x
   x = 101,992,134.41/8,482.59
6. Step 6: Final answer
   x = 12,023.70