Finding the Fourth Proportional to 16,522.12, 22,782.88 and 12,487.24

Step by Step Solution

1. Step 1: Write the proportion equation
   16,522.12 : 22,782.88 = 12,487.24 : x
2. Step 2: Convert to fraction form
   16,522.12/22,782.88 = 12,487.24/x
3. Step 3: Cross multiply
   16,522.12x = 22,782.88 × 12,487.24
4. Step 4: Simplify right side
   16,522.12x = 284,495,290.45
5. Step 5: Solve for x
   x = 284,495,290.45/16,522.12
6. Step 6: Final answer
   x = 17,219.05