Finding the Fourth Proportional to 8,373.09, 12,559.85 and 3,439.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,373.09 : 12,559.85 = 3,439.27 : x
2. Step 2: Convert to fraction form
   8,373.09/12,559.85 = 3,439.27/x
3. Step 3: Cross multiply
   8,373.09x = 12,559.85 × 3,439.27
4. Step 4: Simplify right side
   8,373.09x = 43,196,715.31
5. Step 5: Solve for x
   x = 43,196,715.31/8,373.09
6. Step 6: Final answer
   x = 5,158.99