Finding the Fourth Proportional to 10,269.30, 14,171.63 and 5,553.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,269.30 : 14,171.63 = 5,553.58 : x
2. Step 2: Convert to fraction form
   10,269.30/14,171.63 = 5,553.58/x
3. Step 3: Cross multiply
   10,269.30x = 14,171.63 × 5,553.58
4. Step 4: Simplify right side
   10,269.30x = 78,703,259.39
5. Step 5: Solve for x
   x = 78,703,259.39/10,269.30
6. Step 6: Final answer
   x = 7,663.94