Finding the Fourth Proportional to 8,674.59, 13,013.69 and 3,480.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,674.59 : 13,013.69 = 3,480.87 : x
2. Step 2: Convert to fraction form
   8,674.59/13,013.69 = 3,480.87/x
3. Step 3: Cross multiply
   8,674.59x = 13,013.69 × 3,480.87
4. Step 4: Simplify right side
   8,674.59x = 45,298,945.71
5. Step 5: Solve for x
   x = 45,298,945.71/8,674.59
6. Step 6: Final answer
   x = 5,222.03