Finding the Fourth Proportional to 16,802.67, 25,219.58 and 8,488.55

Step by Step Solution

1. Step 1: Write the proportion equation
   16,802.67 : 25,219.58 = 8,488.55 : x
2. Step 2: Convert to fraction form
   16,802.67/25,219.58 = 8,488.55/x
3. Step 3: Cross multiply
   16,802.67x = 25,219.58 × 8,488.55
4. Step 4: Simplify right side
   16,802.67x = 214,077,568.43
5. Step 5: Solve for x
   x = 214,077,568.43/16,802.67
6. Step 6: Final answer
   x = 12,740.68