Finding the Fourth Proportional to 10,269.18, 14,171.42 and 5,553.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,269.18 : 14,171.42 = 5,553.45 : x
2. Step 2: Convert to fraction form
   10,269.18/14,171.42 = 5,553.45/x
3. Step 3: Cross multiply
   10,269.18x = 14,171.42 × 5,553.45
4. Step 4: Simplify right side
   10,269.18x = 78,700,286.28
5. Step 5: Solve for x
   x = 78,700,286.28/10,269.18
6. Step 6: Final answer
   x = 7,663.74