Finding the Fourth Proportional to 16,818.50, 25,224.50 and 5,725.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,818.50 : 25,224.50 = 5,725.10 : x
2. Step 2: Convert to fraction form
   16,818.50/25,224.50 = 5,725.10/x
3. Step 3: Cross multiply
   16,818.50x = 25,224.50 × 5,725.10
4. Step 4: Simplify right side
   16,818.50x = 144,412,784.95
5. Step 5: Solve for x
   x = 144,412,784.95/16,818.50
6. Step 6: Final answer
   x = 8,586.54