Finding the Fourth Proportional to 12,917.56, 17,825.52 and 7,328.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,917.56 : 17,825.52 = 7,328.56 : x
2. Step 2: Convert to fraction form
   12,917.56/17,825.52 = 7,328.56/x
3. Step 3: Cross multiply
   12,917.56x = 17,825.52 × 7,328.56
4. Step 4: Simplify right side
   12,917.56x = 130,635,392.85
5. Step 5: Solve for x
   x = 130,635,392.85/12,917.56
6. Step 6: Final answer
   x = 10,113.01