Finding the Fourth Proportional to 16,389.53, 24,563.70 and 7,018.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.53 : 24,563.70 = 7,018.50 : x
2. Step 2: Convert to fraction form
   16,389.53/24,563.70 = 7,018.50/x
3. Step 3: Cross multiply
   16,389.53x = 24,563.70 × 7,018.50
4. Step 4: Simplify right side
   16,389.53x = 172,400,328.45
5. Step 5: Solve for x
   x = 172,400,328.45/16,389.53
6. Step 6: Final answer
   x = 10,518.93