Finding the Fourth Proportional to 12,256.58, 18,355.25 and 6,975.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,256.58 : 18,355.25 = 6,975.59 : x
2. Step 2: Convert to fraction form
   12,256.58/18,355.25 = 6,975.59/x
3. Step 3: Cross multiply
   12,256.58x = 18,355.25 × 6,975.59
4. Step 4: Simplify right side
   12,256.58x = 128,038,571.69
5. Step 5: Solve for x
   x = 128,038,571.69/12,256.58
6. Step 6: Final answer
   x = 10,446.52