Finding the Fourth Proportional to 7,102.81, 10,647.33 and 3,984.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,102.81 : 10,647.33 = 3,984.31 : x
2. Step 2: Convert to fraction form
   7,102.81/10,647.33 = 3,984.31/x
3. Step 3: Cross multiply
   7,102.81x = 10,647.33 × 3,984.31
4. Step 4: Simplify right side
   7,102.81x = 42,422,263.39
5. Step 5: Solve for x
   x = 42,422,263.39/7,102.81
6. Step 6: Final answer
   x = 5,972.60