Finding the Fourth Proportional to 10,269.66, 14,172.16 and 5,553.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,269.66 : 14,172.16 = 5,553.94 : x
2. Step 2: Convert to fraction form
   10,269.66/14,172.16 = 5,553.94/x
3. Step 3: Cross multiply
   10,269.66x = 14,172.16 × 5,553.94
4. Step 4: Simplify right side
   10,269.66x = 78,711,326.31
5. Step 5: Solve for x
   x = 78,711,326.31/10,269.66
6. Step 6: Final answer
   x = 7,664.45