Finding the Fourth Proportional to 9,967.71, 13,756.06 and 5,491.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,967.71 : 13,756.06 = 5,491.46 : x
2. Step 2: Convert to fraction form
   9,967.71/13,756.06 = 5,491.46/x
3. Step 3: Cross multiply
   9,967.71x = 13,756.06 × 5,491.46
4. Step 4: Simplify right side
   9,967.71x = 75,540,901.37
5. Step 5: Solve for x
   x = 75,540,901.37/9,967.71
6. Step 6: Final answer
   x = 7,578.56