Finding the Fourth Proportional to 17,818.87, 24,590.81 and 9,861.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,818.87 : 24,590.81 = 9,861.10 : x
2. Step 2: Convert to fraction form
   17,818.87/24,590.81 = 9,861.10/x
3. Step 3: Cross multiply
   17,818.87x = 24,590.81 × 9,861.10
4. Step 4: Simplify right side
   17,818.87x = 242,492,351.22
5. Step 5: Solve for x
   x = 242,492,351.22/17,818.87
6. Step 6: Final answer
   x = 13,608.74