Finding the Fourth Proportional to 8,964.37, 12,371.43 and 4,986.19

Step by Step Solution

1. Step 1: Write the proportion equation
   8,964.37 : 12,371.43 = 4,986.19 : x
2. Step 2: Convert to fraction form
   8,964.37/12,371.43 = 4,986.19/x
3. Step 3: Cross multiply
   8,964.37x = 12,371.43 × 4,986.19
4. Step 4: Simplify right side
   8,964.37x = 61,686,300.55
5. Step 5: Solve for x
   x = 61,686,300.55/8,964.37
6. Step 6: Final answer
   x = 6,881.28