Finding the Fourth Proportional to 12,682.98, 19,017.59 and 8,992.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.98 : 19,017.59 = 8,992.49 : x
2. Step 2: Convert to fraction form
   12,682.98/19,017.59 = 8,992.49/x
3. Step 3: Cross multiply
   12,682.98x = 19,017.59 × 8,992.49
4. Step 4: Simplify right side
   12,682.98x = 171,015,347.85
5. Step 5: Solve for x
   x = 171,015,347.85/12,682.98
6. Step 6: Final answer
   x = 13,483.85