Finding the Fourth Proportional to 12,675.90, 17,456.71 and 12,404.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,675.90 : 17,456.71 = 12,404.54 : x
2. Step 2: Convert to fraction form
   12,675.90/17,456.71 = 12,404.54/x
3. Step 3: Cross multiply
   12,675.90x = 17,456.71 × 12,404.54
4. Step 4: Simplify right side
   12,675.90x = 216,542,457.46
5. Step 5: Solve for x
   x = 216,542,457.46/12,675.90
6. Step 6: Final answer
   x = 17,083.00