Finding the Fourth Proportional to 10,271.91, 14,175.21 and 5,556.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,271.91 : 14,175.21 = 5,556.18 : x
2. Step 2: Convert to fraction form
   10,271.91/14,175.21 = 5,556.18/x
3. Step 3: Cross multiply
   10,271.91x = 14,175.21 × 5,556.18
4. Step 4: Simplify right side
   10,271.91x = 78,760,018.30
5. Step 5: Solve for x
   x = 78,760,018.30/10,271.91
6. Step 6: Final answer
   x = 7,667.51