Finding the Fourth Proportional to 17,105.63, 25,795.23 and 16,871.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,105.63 : 25,795.23 = 16,871.72 : x
2. Step 2: Convert to fraction form
   17,105.63/25,795.23 = 16,871.72/x
3. Step 3: Cross multiply
   17,105.63x = 25,795.23 × 16,871.72
4. Step 4: Simplify right side
   17,105.63x = 435,209,705.65
5. Step 5: Solve for x
   x = 435,209,705.65/17,105.63
6. Step 6: Final answer
   x = 25,442.49