Finding the Fourth Proportional to 8,687.56, 13,030.35 and 2,448.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,687.56 : 13,030.35 = 2,448.09 : x
2. Step 2: Convert to fraction form
   8,687.56/13,030.35 = 2,448.09/x
3. Step 3: Cross multiply
   8,687.56x = 13,030.35 × 2,448.09
4. Step 4: Simplify right side
   8,687.56x = 31,899,404.38
5. Step 5: Solve for x
   x = 31,899,404.38/8,687.56
6. Step 6: Final answer
   x = 3,671.85