Finding the Fourth Proportional to 7,172.82, 10,761.96 and 3,474.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,172.82 : 10,761.96 = 3,474.78 : x
2. Step 2: Convert to fraction form
   7,172.82/10,761.96 = 3,474.78/x
3. Step 3: Cross multiply
   7,172.82x = 10,761.96 × 3,474.78
4. Step 4: Simplify right side
   7,172.82x = 37,395,443.37
5. Step 5: Solve for x
   x = 37,395,443.37/7,172.82
6. Step 6: Final answer
   x = 5,213.49