Finding the Fourth Proportional to 8,635.86, 12,951.86 and 3,371.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,635.86 : 12,951.86 = 3,371.02 : x
2. Step 2: Convert to fraction form
   8,635.86/12,951.86 = 3,371.02/x
3. Step 3: Cross multiply
   8,635.86x = 12,951.86 × 3,371.02
4. Step 4: Simplify right side
   8,635.86x = 43,660,979.10
5. Step 5: Solve for x
   x = 43,660,979.10/8,635.86
6. Step 6: Final answer
   x = 5,055.78