Finding the Fourth Proportional to 7,172.04, 10,761.12 and 3,881.28

Step by Step Solution

1. Step 1: Write the proportion equation
   7,172.04 : 10,761.12 = 3,881.28 : x
2. Step 2: Convert to fraction form
   7,172.04/10,761.12 = 3,881.28/x
3. Step 3: Cross multiply
   7,172.04x = 10,761.12 × 3,881.28
4. Step 4: Simplify right side
   7,172.04x = 41,766,919.83
5. Step 5: Solve for x
   x = 41,766,919.83/7,172.04
6. Step 6: Final answer
   x = 5,823.58