Finding the Fourth Proportional to 8,353.60, 12,530.39 and 3,423.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,353.60 : 12,530.39 = 3,423.25 : x
2. Step 2: Convert to fraction form
   8,353.60/12,530.39 = 3,423.25/x
3. Step 3: Cross multiply
   8,353.60x = 12,530.39 × 3,423.25
4. Step 4: Simplify right side
   8,353.60x = 42,894,577.80
5. Step 5: Solve for x
   x = 42,894,577.80/8,353.60
6. Step 6: Final answer
   x = 5,134.86