Finding the Fourth Proportional to 12,284.10, 18,416.46 and 5,715

Step by Step Solution

1. Step 1: Write the proportion equation
   12,284.10 : 18,416.46 = 5,715 : x
2. Step 2: Convert to fraction form
   12,284.10/18,416.46 = 5,715/x
3. Step 3: Cross multiply
   12,284.10x = 18,416.46 × 5,715
4. Step 4: Simplify right side
   12,284.10x = 105,250,068.90
5. Step 5: Solve for x
   x = 105,250,068.90/12,284.10
6. Step 6: Final answer
   x = 8,567.99