Finding the Fourth Proportional to 8,477.12, 12,707.31 and 3,550.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,477.12 : 12,707.31 = 3,550.16 : x
2. Step 2: Convert to fraction form
   8,477.12/12,707.31 = 3,550.16/x
3. Step 3: Cross multiply
   8,477.12x = 12,707.31 × 3,550.16
4. Step 4: Simplify right side
   8,477.12x = 45,113,028.75
5. Step 5: Solve for x
   x = 45,113,028.75/8,477.12
6. Step 6: Final answer
   x = 5,321.74