Finding the Fourth Proportional to 8,651.61, 12,976.00 and 2,412.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,651.61 : 12,976.00 = 2,412.05 : x
2. Step 2: Convert to fraction form
   8,651.61/12,976.00 = 2,412.05/x
3. Step 3: Cross multiply
   8,651.61x = 12,976.00 × 2,412.05
4. Step 4: Simplify right side
   8,651.61x = 31,298,689.89
5. Step 5: Solve for x
   x = 31,298,689.89/8,651.61
6. Step 6: Final answer
   x = 3,617.67