Finding the Fourth Proportional to 8,317.86, 12,485.22 and 4,160.84

Step by Step Solution

1. Step 1: Write the proportion equation
   8,317.86 : 12,485.22 = 4,160.84 : x
2. Step 2: Convert to fraction form
   8,317.86/12,485.22 = 4,160.84/x
3. Step 3: Cross multiply
   8,317.86x = 12,485.22 × 4,160.84
4. Step 4: Simplify right side
   8,317.86x = 51,949,002.78
5. Step 5: Solve for x
   x = 51,949,002.78/8,317.86
6. Step 6: Final answer
   x = 6,245.48