Finding the Fourth Proportional to 16,860.24, 23,275.87 and 12,317.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,860.24 : 23,275.87 = 12,317.82 : x
2. Step 2: Convert to fraction form
   16,860.24/23,275.87 = 12,317.82/x
3. Step 3: Cross multiply
   16,860.24x = 23,275.87 × 12,317.82
4. Step 4: Simplify right side
   16,860.24x = 286,707,977.00
5. Step 5: Solve for x
   x = 286,707,977.00/16,860.24
6. Step 6: Final answer
   x = 17,004.98