Finding the Fourth Proportional to 8,605.89, 12,908.48 and 3,062.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,605.89 : 12,908.48 = 3,062.61 : x
2. Step 2: Convert to fraction form
   8,605.89/12,908.48 = 3,062.61/x
3. Step 3: Cross multiply
   8,605.89x = 12,908.48 × 3,062.61
4. Step 4: Simplify right side
   8,605.89x = 39,533,624.62
5. Step 5: Solve for x
   x = 39,533,624.62/8,605.89
6. Step 6: Final answer
   x = 4,593.79