Finding the Fourth Proportional to 10,269.56, 14,172.03 and 5,553.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,269.56 : 14,172.03 = 5,553.88 : x
2. Step 2: Convert to fraction form
   10,269.56/14,172.03 = 5,553.88/x
3. Step 3: Cross multiply
   10,269.56x = 14,172.03 × 5,553.88
4. Step 4: Simplify right side
   10,269.56x = 78,709,718.55
5. Step 5: Solve for x
   x = 78,709,718.55/10,269.56
6. Step 6: Final answer
   x = 7,664.37