Finding the Fourth Proportional to 10,986.27, 16,480.33 and 3,590.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,986.27 : 16,480.33 = 3,590.56 : x
2. Step 2: Convert to fraction form
   10,986.27/16,480.33 = 3,590.56/x
3. Step 3: Cross multiply
   10,986.27x = 16,480.33 × 3,590.56
4. Step 4: Simplify right side
   10,986.27x = 59,173,625.31
5. Step 5: Solve for x
   x = 59,173,625.31/10,986.27
6. Step 6: Final answer
   x = 5,386.15