Finding the Fourth Proportional to 10,269.63, 14,172.03 and 5,553.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,269.63 : 14,172.03 = 5,553.81 : x
2. Step 2: Convert to fraction form
   10,269.63/14,172.03 = 5,553.81/x
3. Step 3: Cross multiply
   10,269.63x = 14,172.03 × 5,553.81
4. Step 4: Simplify right side
   10,269.63x = 78,708,761.93
5. Step 5: Solve for x
   x = 78,708,761.93/10,269.63
6. Step 6: Final answer
   x = 7,664.23