Finding the Fourth Proportional to 17,265.30, 25,847.55 and 12,902.10

Step by Step Solution

1. Step 1: Write the proportion equation
   17,265.30 : 25,847.55 = 12,902.10 : x
2. Step 2: Convert to fraction form
   17,265.30/25,847.55 = 12,902.10/x
3. Step 3: Cross multiply
   17,265.30x = 25,847.55 × 12,902.10
4. Step 4: Simplify right side
   17,265.30x = 333,487,674.86
5. Step 5: Solve for x
   x = 333,487,674.86/17,265.30
6. Step 6: Final answer
   x = 19,315.49