Finding the Fourth Proportional to 8,986.56, 12,401.46 and 5,007.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,986.56 : 12,401.46 = 5,007.81 : x
2. Step 2: Convert to fraction form
   8,986.56/12,401.46 = 5,007.81/x
3. Step 3: Cross multiply
   8,986.56x = 12,401.46 × 5,007.81
4. Step 4: Simplify right side
   8,986.56x = 62,104,155.40
5. Step 5: Solve for x
   x = 62,104,155.40/8,986.56
6. Step 6: Final answer
   x = 6,910.78