Finding the Fourth Proportional to 13,616.43, 18,792.71 and 8,314.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,616.43 : 18,792.71 = 8,314.32 : x
2. Step 2: Convert to fraction form
   13,616.43/18,792.71 = 8,314.32/x
3. Step 3: Cross multiply
   13,616.43x = 18,792.71 × 8,314.32
4. Step 4: Simplify right side
   13,616.43x = 156,248,563.04
5. Step 5: Solve for x
   x = 156,248,563.04/13,616.43
6. Step 6: Final answer
   x = 11,475.00