Finding the Fourth Proportional to 17,145.98, 25,696.42 and 7,273.05

Step by Step Solution

1. Step 1: Write the proportion equation
   17,145.98 : 25,696.42 = 7,273.05 : x
2. Step 2: Convert to fraction form
   17,145.98/25,696.42 = 7,273.05/x
3. Step 3: Cross multiply
   17,145.98x = 25,696.42 × 7,273.05
4. Step 4: Simplify right side
   17,145.98x = 186,891,273.85
5. Step 5: Solve for x
   x = 186,891,273.85/17,145.98
6. Step 6: Final answer
   x = 10,900.00