Finding the Fourth Proportional to 12,894.56, 17,794.18 and 7,229.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,894.56 : 17,794.18 = 7,229.59 : x
2. Step 2: Convert to fraction form
   12,894.56/17,794.18 = 7,229.59/x
3. Step 3: Cross multiply
   12,894.56x = 17,794.18 × 7,229.59
4. Step 4: Simplify right side
   12,894.56x = 128,644,590.34
5. Step 5: Solve for x
   x = 128,644,590.34/12,894.56
6. Step 6: Final answer
   x = 9,976.66