Finding the Fourth Proportional to 10,270.08, 14,172.69 and 5,554.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,270.08 : 14,172.69 = 5,554.35 : x
2. Step 2: Convert to fraction form
   10,270.08/14,172.69 = 5,554.35/x
3. Step 3: Cross multiply
   10,270.08x = 14,172.69 × 5,554.35
4. Step 4: Simplify right side
   10,270.08x = 78,720,080.70
5. Step 5: Solve for x
   x = 78,720,080.70/10,270.08
6. Step 6: Final answer
   x = 7,664.99