Finding the Fourth Proportional to 8,406.55, 12,604.78 and 3,473.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,406.55 : 12,604.78 = 3,473.29 : x
2. Step 2: Convert to fraction form
   8,406.55/12,604.78 = 3,473.29/x
3. Step 3: Cross multiply
   8,406.55x = 12,604.78 × 3,473.29
4. Step 4: Simplify right side
   8,406.55x = 43,780,056.33
5. Step 5: Solve for x
   x = 43,780,056.33/8,406.55
6. Step 6: Final answer
   x = 5,207.85