Finding the Fourth Proportional to 6,131.43, 8,460 and 3,892.48

Step by Step Solution

1. Step 1: Write the proportion equation
   6,131.43 : 8,460 = 3,892.48 : x
2. Step 2: Convert to fraction form
   6,131.43/8,460 = 3,892.48/x
3. Step 3: Cross multiply
   6,131.43x = 8,460 × 3,892.48
4. Step 4: Simplify right side
   6,131.43x = 32,930,359.65
5. Step 5: Solve for x
   x = 32,930,359.65/6,131.43
6. Step 6: Final answer
   x = 5,370.75