Finding the Fourth Proportional to 10,271.16, 14,174.21 and 5,555.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,271.16 : 14,174.21 = 5,555.45 : x
2. Step 2: Convert to fraction form
   10,271.16/14,174.21 = 5,555.45/x
3. Step 3: Cross multiply
   10,271.16x = 14,174.21 × 5,555.45
4. Step 4: Simplify right side
   10,271.16x = 78,744,016.30
5. Step 5: Solve for x
   x = 78,744,016.30/10,271.16
6. Step 6: Final answer
   x = 7,666.52