Finding the Fourth Proportional to 10,271.54, 14,174.70 and 5,555.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,271.54 : 14,174.70 = 5,555.90 : x
2. Step 2: Convert to fraction form
   10,271.54/14,174.70 = 5,555.90/x
3. Step 3: Cross multiply
   10,271.54x = 14,174.70 × 5,555.90
4. Step 4: Simplify right side
   10,271.54x = 78,753,215.73
5. Step 5: Solve for x
   x = 78,753,215.73/10,271.54
6. Step 6: Final answer
   x = 7,667.13