Finding the Fourth Proportional to 10,271.75, 15,410.18 and 5,590.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,271.75 : 15,410.18 = 5,590.49 : x
2. Step 2: Convert to fraction form
   10,271.75/15,410.18 = 5,590.49/x
3. Step 3: Cross multiply
   10,271.75x = 15,410.18 × 5,590.49
4. Step 4: Simplify right side
   10,271.75x = 86,150,394.11
5. Step 5: Solve for x
   x = 86,150,394.11/10,271.75
6. Step 6: Final answer
   x = 8,387.12