Finding the Fourth Proportional to 9,964.42, 13,756.42 and 5,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964.42 : 13,756.42 = 5,986.50 : x
2. Step 2: Convert to fraction form
   9,964.42/13,756.42 = 5,986.50/x
3. Step 3: Cross multiply
   9,964.42x = 13,756.42 × 5,986.50
4. Step 4: Simplify right side
   9,964.42x = 82,352,808.33
5. Step 5: Solve for x
   x = 82,352,808.33/9,964.42
6. Step 6: Final answer
   x = 8,264.69