Finding the Fourth Proportional to 16,818.60, 25,230.96 and 5,724.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,818.60 : 25,230.96 = 5,724.72 : x
2. Step 2: Convert to fraction form
   16,818.60/25,230.96 = 5,724.72/x
3. Step 3: Cross multiply
   16,818.60x = 25,230.96 × 5,724.72
4. Step 4: Simplify right side
   16,818.60x = 144,440,181.33
5. Step 5: Solve for x
   x = 144,440,181.33/16,818.60
6. Step 6: Final answer
   x = 8,588.12