Finding the Fourth Proportional to 10,269.84, 14,172.38 and 5,554.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,269.84 : 14,172.38 = 5,554.12 : x
2. Step 2: Convert to fraction form
   10,269.84/14,172.38 = 5,554.12/x
3. Step 3: Cross multiply
   10,269.84x = 14,172.38 × 5,554.12
4. Step 4: Simplify right side
   10,269.84x = 78,715,099.21
5. Step 5: Solve for x
   x = 78,715,099.21/10,269.84
6. Step 6: Final answer
   x = 7,664.69