Finding the Fourth Proportional to 10,269.32, 14,171.69 and 5,553.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,269.32 : 14,171.69 = 5,553.61 : x
2. Step 2: Convert to fraction form
   10,269.32/14,171.69 = 5,553.61/x
3. Step 3: Cross multiply
   10,269.32x = 14,171.69 × 5,553.61
4. Step 4: Simplify right side
   10,269.32x = 78,703,976.10
5. Step 5: Solve for x
   x = 78,703,976.10/10,269.32
6. Step 6: Final answer
   x = 7,663.99