Finding the Fourth Proportional to 8,081.67, 12,113.54 and 3,400.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081.67 : 12,113.54 = 3,400.31 : x
2. Step 2: Convert to fraction form
   8,081.67/12,113.54 = 3,400.31/x
3. Step 3: Cross multiply
   8,081.67x = 12,113.54 × 3,400.31
4. Step 4: Simplify right side
   8,081.67x = 41,189,713.63
5. Step 5: Solve for x
   x = 41,189,713.63/8,081.67
6. Step 6: Final answer
   x = 5,096.68