Finding the Fourth Proportional to 12,361.18, 17,057.46 and 7,055.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,361.18 : 17,057.46 = 7,055.28 : x
2. Step 2: Convert to fraction form
   12,361.18/17,057.46 = 7,055.28/x
3. Step 3: Cross multiply
   12,361.18x = 17,057.46 × 7,055.28
4. Step 4: Simplify right side
   12,361.18x = 120,345,156.39
5. Step 5: Solve for x
   x = 120,345,156.39/12,361.18
6. Step 6: Final answer
   x = 9,735.73