Finding the Fourth Proportional to 12,753.50, 17,601.03 and 8,985.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,753.50 : 17,601.03 = 8,985.78 : x
2. Step 2: Convert to fraction form
   12,753.50/17,601.03 = 8,985.78/x
3. Step 3: Cross multiply
   12,753.50x = 17,601.03 × 8,985.78
4. Step 4: Simplify right side
   12,753.50x = 158,158,983.35
5. Step 5: Solve for x
   x = 158,158,983.35/12,753.50
6. Step 6: Final answer
   x = 12,401.23