Finding the Fourth Proportional to 8,338.42, 12,504.49 and 3,405.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,338.42 : 12,504.49 = 3,405.42 : x
2. Step 2: Convert to fraction form
   8,338.42/12,504.49 = 3,405.42/x
3. Step 3: Cross multiply
   8,338.42x = 12,504.49 × 3,405.42
4. Step 4: Simplify right side
   8,338.42x = 42,583,031.82
5. Step 5: Solve for x
   x = 42,583,031.82/8,338.42
6. Step 6: Final answer
   x = 5,106.85