Finding the Fourth Proportional to 17,293.71, 25,918.53 and 8,411.05

Step by Step Solution

1. Step 1: Write the proportion equation
   17,293.71 : 25,918.53 = 8,411.05 : x
2. Step 2: Convert to fraction form
   17,293.71/25,918.53 = 8,411.05/x
3. Step 3: Cross multiply
   17,293.71x = 25,918.53 × 8,411.05
4. Step 4: Simplify right side
   17,293.71x = 218,002,051.76
5. Step 5: Solve for x
   x = 218,002,051.76/17,293.71
6. Step 6: Final answer
   x = 12,605.86