Finding the Fourth Proportional to 5,271.94, 7,911.77 and 3,889.01

Step by Step Solution

1. Step 1: Write the proportion equation
   5,271.94 : 7,911.77 = 3,889.01 : x
2. Step 2: Convert to fraction form
   5,271.94/7,911.77 = 3,889.01/x
3. Step 3: Cross multiply
   5,271.94x = 7,911.77 × 3,889.01
4. Step 4: Simplify right side
   5,271.94x = 30,768,893.64
5. Step 5: Solve for x
   x = 30,768,893.64/5,271.94
6. Step 6: Final answer
   x = 5,836.35