Finding the Fourth Proportional to 10,269.14, 14,171.42 and 5,553.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,269.14 : 14,171.42 = 5,553.42 : x
2. Step 2: Convert to fraction form
   10,269.14/14,171.42 = 5,553.42/x
3. Step 3: Cross multiply
   10,269.14x = 14,171.42 × 5,553.42
4. Step 4: Simplify right side
   10,269.14x = 78,699,847.26
5. Step 5: Solve for x
   x = 78,699,847.26/10,269.14
6. Step 6: Final answer
   x = 7,663.72