Finding the Fourth Proportional to 5,851.33, 8,066.73 and 3,959.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,851.33 : 8,066.73 = 3,959.91 : x
2. Step 2: Convert to fraction form
   5,851.33/8,066.73 = 3,959.91/x
3. Step 3: Cross multiply
   5,851.33x = 8,066.73 × 3,959.91
4. Step 4: Simplify right side
   5,851.33x = 31,943,534.49
5. Step 5: Solve for x
   x = 31,943,534.49/5,851.33
6. Step 6: Final answer
   x = 5,459.20