Finding the Fourth Proportional to 8,317.06, 12,477.94 and 3,390.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,317.06 : 12,477.94 = 3,390.24 : x
2. Step 2: Convert to fraction form
   8,317.06/12,477.94 = 3,390.24/x
3. Step 3: Cross multiply
   8,317.06x = 12,477.94 × 3,390.24
4. Step 4: Simplify right side
   8,317.06x = 42,303,211.31
5. Step 5: Solve for x
   x = 42,303,211.31/8,317.06
6. Step 6: Final answer
   x = 5,086.32