Finding the Fourth Proportional to 10,270.13, 14,172.78 and 5,554.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,270.13 : 14,172.78 = 5,554.41 : x
2. Step 2: Convert to fraction form
   10,270.13/14,172.78 = 5,554.41/x
3. Step 3: Cross multiply
   10,270.13x = 14,172.78 × 5,554.41
4. Step 4: Simplify right side
   10,270.13x = 78,721,466.78
5. Step 5: Solve for x
   x = 78,721,466.78/10,270.13
6. Step 6: Final answer
   x = 7,665.09