Finding the Fourth Proportional to 16,986.84, 25,483.91 and 7,120.46

Step by Step Solution

1. Step 1: Write the proportion equation
   16,986.84 : 25,483.91 = 7,120.46 : x
2. Step 2: Convert to fraction form
   16,986.84/25,483.91 = 7,120.46/x
3. Step 3: Cross multiply
   16,986.84x = 25,483.91 × 7,120.46
4. Step 4: Simplify right side
   16,986.84x = 181,456,998.78
5. Step 5: Solve for x
   x = 181,456,998.78/16,986.84
6. Step 6: Final answer
   x = 10,682.21