Finding the Fourth Proportional to 9,410.25, 12,986.00 and 5,161.41

Step by Step Solution

1. Step 1: Write the proportion equation
   9,410.25 : 12,986.00 = 5,161.41 : x
2. Step 2: Convert to fraction form
   9,410.25/12,986.00 = 5,161.41/x
3. Step 3: Cross multiply
   9,410.25x = 12,986.00 × 5,161.41
4. Step 4: Simplify right side
   9,410.25x = 67,026,044.45
5. Step 5: Solve for x
   x = 67,026,044.45/9,410.25
6. Step 6: Final answer
   x = 7,122.66