Finding the Fourth Proportional to 12,741.89, 17,572.82 and 8,963.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,741.89 : 17,572.82 = 8,963.78 : x
2. Step 2: Convert to fraction form
   12,741.89/17,572.82 = 8,963.78/x
3. Step 3: Cross multiply
   12,741.89x = 17,572.82 × 8,963.78
4. Step 4: Simplify right side
   12,741.89x = 157,518,759.78
5. Step 5: Solve for x
   x = 157,518,759.78/12,741.89
6. Step 6: Final answer
   x = 12,362.28