Finding the Fourth Proportional to 8,601.14, 12,899.94 and 3,919.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,601.14 : 12,899.94 = 3,919.82 : x
2. Step 2: Convert to fraction form
   8,601.14/12,899.94 = 3,919.82/x
3. Step 3: Cross multiply
   8,601.14x = 12,899.94 × 3,919.82
4. Step 4: Simplify right side
   8,601.14x = 50,565,378.31
5. Step 5: Solve for x
   x = 50,565,378.31/8,601.14
6. Step 6: Final answer
   x = 5,878.92