Finding the Fourth Proportional to 17,100.91, 25,645.29 and 6,571.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,100.91 : 25,645.29 = 6,571.72 : x
2. Step 2: Convert to fraction form
   17,100.91/25,645.29 = 6,571.72/x
3. Step 3: Cross multiply
   17,100.91x = 25,645.29 × 6,571.72
4. Step 4: Simplify right side
   17,100.91x = 168,533,665.20
5. Step 5: Solve for x
   x = 168,533,665.20/17,100.91
6. Step 6: Final answer
   x = 9,855.25