Finding the Fourth Proportional to 5,067.35, 7,005.98 and 3,892.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,067.35 : 7,005.98 = 3,892.31 : x
2. Step 2: Convert to fraction form
   5,067.35/7,005.98 = 3,892.31/x
3. Step 3: Cross multiply
   5,067.35x = 7,005.98 × 3,892.31
4. Step 4: Simplify right side
   5,067.35x = 27,269,420.71
5. Step 5: Solve for x
   x = 27,269,420.71/5,067.35
6. Step 6: Final answer
   x = 5,381.40