Finding the Fourth Proportional to 17,086.65, 23,544.59 and 12,603.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,086.65 : 23,544.59 = 12,603.30 : x
2. Step 2: Convert to fraction form
   17,086.65/23,544.59 = 12,603.30/x
3. Step 3: Cross multiply
   17,086.65x = 23,544.59 × 12,603.30
4. Step 4: Simplify right side
   17,086.65x = 296,739,468.13
5. Step 5: Solve for x
   x = 296,739,468.13/17,086.65
6. Step 6: Final answer
   x = 17,366.74