Finding the Fourth Proportional to 8,617.56, 12,927.78 and 3,074.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,617.56 : 12,927.78 = 3,074.10 : x
2. Step 2: Convert to fraction form
   8,617.56/12,927.78 = 3,074.10/x
3. Step 3: Cross multiply
   8,617.56x = 12,927.78 × 3,074.10
4. Step 4: Simplify right side
   8,617.56x = 39,741,288.50
5. Step 5: Solve for x
   x = 39,741,288.50/8,617.56
6. Step 6: Final answer
   x = 4,611.66