Finding the Fourth Proportional to 10,270.17, 14,172.82 and 5,554.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,270.17 : 14,172.82 = 5,554.45 : x
2. Step 2: Convert to fraction form
   10,270.17/14,172.82 = 5,554.45/x
3. Step 3: Cross multiply
   10,270.17x = 14,172.82 × 5,554.45
4. Step 4: Simplify right side
   10,270.17x = 78,722,149.18
5. Step 5: Solve for x
   x = 78,722,149.18/10,270.17
6. Step 6: Final answer
   x = 7,665.13