Finding the Fourth Proportional to 12,375.56, 17,078.22 and 6,786.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,375.56 : 17,078.22 = 6,786.56 : x
2. Step 2: Convert to fraction form
   12,375.56/17,078.22 = 6,786.56/x
3. Step 3: Cross multiply
   12,375.56x = 17,078.22 × 6,786.56
4. Step 4: Simplify right side
   12,375.56x = 115,902,364.72
5. Step 5: Solve for x
   x = 115,902,364.72/12,375.56
6. Step 6: Final answer
   x = 9,365.42