Finding the Fourth Proportional to 6,109.52, 8,431.02 and 3,456.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,109.52 : 8,431.02 = 3,456.80 : x
2. Step 2: Convert to fraction form
   6,109.52/8,431.02 = 3,456.80/x
3. Step 3: Cross multiply
   6,109.52x = 8,431.02 × 3,456.80
4. Step 4: Simplify right side
   6,109.52x = 29,144,349.94
5. Step 5: Solve for x
   x = 29,144,349.94/6,109.52
6. Step 6: Final answer
   x = 4,770.32