Finding the Fourth Proportional to 10,269.89, 14,172.45 and 5,554.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,269.89 : 14,172.45 = 5,554.17 : x
2. Step 2: Convert to fraction form
   10,269.89/14,172.45 = 5,554.17/x
3. Step 3: Cross multiply
   10,269.89x = 14,172.45 × 5,554.17
4. Step 4: Simplify right side
   10,269.89x = 78,716,207.03
5. Step 5: Solve for x
   x = 78,716,207.03/10,269.89
6. Step 6: Final answer
   x = 7,664.76