Finding the Fourth Proportional to 12,581.56, 17,369.04 and 9,894.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,581.56 : 17,369.04 = 9,894.45 : x
2. Step 2: Convert to fraction form
   12,581.56/17,369.04 = 9,894.45/x
3. Step 3: Cross multiply
   12,581.56x = 17,369.04 × 9,894.45
4. Step 4: Simplify right side
   12,581.56x = 171,857,097.83
5. Step 5: Solve for x
   x = 171,857,097.83/12,581.56
6. Step 6: Final answer
   x = 13,659.44