Finding the Fourth Proportional to 8,606.15, 12,910.57 and 3,675.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,606.15 : 12,910.57 = 3,675.81 : x
2. Step 2: Convert to fraction form
   8,606.15/12,910.57 = 3,675.81/x
3. Step 3: Cross multiply
   8,606.15x = 12,910.57 × 3,675.81
4. Step 4: Simplify right side
   8,606.15x = 47,456,802.31
5. Step 5: Solve for x
   x = 47,456,802.31/8,606.15
6. Step 6: Final answer
   x = 5,514.29