Finding the Fourth Proportional to 12,360.69, 17,057.12 and 7,255.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,360.69 : 17,057.12 = 7,255.51 : x
2. Step 2: Convert to fraction form
   12,360.69/17,057.12 = 7,255.51/x
3. Step 3: Cross multiply
   12,360.69x = 17,057.12 × 7,255.51
4. Step 4: Simplify right side
   12,360.69x = 123,758,104.73
5. Step 5: Solve for x
   x = 123,758,104.73/12,360.69
6. Step 6: Final answer
   x = 10,012.23