Finding the Fourth Proportional to 5,810.16, 8,057.90 and 5,449.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,810.16 : 8,057.90 = 5,449.31 : x
2. Step 2: Convert to fraction form
   5,810.16/8,057.90 = 5,449.31/x
3. Step 3: Cross multiply
   5,810.16x = 8,057.90 × 5,449.31
4. Step 4: Simplify right side
   5,810.16x = 43,909,927.51
5. Step 5: Solve for x
   x = 43,909,927.51/5,810.16
6. Step 6: Final answer
   x = 7,557.44