Finding the Fourth Proportional to 5,392.65, 8,057.52 and 3,981.09

Step by Step Solution

1. Step 1: Write the proportion equation
   5,392.65 : 8,057.52 = 3,981.09 : x
2. Step 2: Convert to fraction form
   5,392.65/8,057.52 = 3,981.09/x
3. Step 3: Cross multiply
   5,392.65x = 8,057.52 × 3,981.09
4. Step 4: Simplify right side
   5,392.65x = 32,077,712.30
5. Step 5: Solve for x
   x = 32,077,712.30/5,392.65
6. Step 6: Final answer
   x = 5,948.41