Finding the Fourth Proportional to 23,076.81, 34,619.85 and 8,286.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,076.81 : 34,619.85 = 8,286.89 : x
2. Step 2: Convert to fraction form
   23,076.81/34,619.85 = 8,286.89/x
3. Step 3: Cross multiply
   23,076.81x = 34,619.85 × 8,286.89
4. Step 4: Simplify right side
   23,076.81x = 286,890,715.67
5. Step 5: Solve for x
   x = 286,890,715.67/23,076.81
6. Step 6: Final answer
   x = 12,431.99