Finding the Fourth Proportional to 10,270.16, 14,172.81 and 5,554.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,270.16 : 14,172.81 = 5,554.43 : x
2. Step 2: Convert to fraction form
   10,270.16/14,172.81 = 5,554.43/x
3. Step 3: Cross multiply
   10,270.16x = 14,172.81 × 5,554.43
4. Step 4: Simplify right side
   10,270.16x = 78,721,810.18
5. Step 5: Solve for x
   x = 78,721,810.18/10,270.16
6. Step 6: Final answer
   x = 7,665.10