Finding the Fourth Proportional to 9,605.31, 14,406.15 and 3,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,605.31 : 14,406.15 = 3,280.50 : x
2. Step 2: Convert to fraction form
   9,605.31/14,406.15 = 3,280.50/x
3. Step 3: Cross multiply
   9,605.31x = 14,406.15 × 3,280.50
4. Step 4: Simplify right side
   9,605.31x = 47,259,375.08
5. Step 5: Solve for x
   x = 47,259,375.08/9,605.31
6. Step 6: Final answer
   x = 4,920.13