Finding the Fourth Proportional to 8,617.59, 12,928.41 and 2,773.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,617.59 : 12,928.41 = 2,773.98 : x
2. Step 2: Convert to fraction form
   8,617.59/12,928.41 = 2,773.98/x
3. Step 3: Cross multiply
   8,617.59x = 12,928.41 × 2,773.98
4. Step 4: Simplify right side
   8,617.59x = 35,863,150.77
5. Step 5: Solve for x
   x = 35,863,150.77/8,617.59
6. Step 6: Final answer
   x = 4,161.62