Finding the Fourth Proportional to 9,128.25, 13,682.37 and 3,580.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,128.25 : 13,682.37 = 3,580.56 : x
2. Step 2: Convert to fraction form
   9,128.25/13,682.37 = 3,580.56/x
3. Step 3: Cross multiply
   9,128.25x = 13,682.37 × 3,580.56
4. Step 4: Simplify right side
   9,128.25x = 48,990,546.73
5. Step 5: Solve for x
   x = 48,990,546.73/9,128.25
6. Step 6: Final answer
   x = 5,366.92