Finding the Fourth Proportional to 8,964.63, 12,371.16 and 4,986.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,964.63 : 12,371.16 = 4,986.12 : x
2. Step 2: Convert to fraction form
   8,964.63/12,371.16 = 4,986.12/x
3. Step 3: Cross multiply
   8,964.63x = 12,371.16 × 4,986.12
4. Step 4: Simplify right side
   8,964.63x = 61,684,088.30
5. Step 5: Solve for x
   x = 61,684,088.30/8,964.63
6. Step 6: Final answer
   x = 6,880.83