Finding the Fourth Proportional to 9,967.28, 13,754.04 and 5,718.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,967.28 : 13,754.04 = 5,718.32 : x
2. Step 2: Convert to fraction form
   9,967.28/13,754.04 = 5,718.32/x
3. Step 3: Cross multiply
   9,967.28x = 13,754.04 × 5,718.32
4. Step 4: Simplify right side
   9,967.28x = 78,650,002.01
5. Step 5: Solve for x
   x = 78,650,002.01/9,967.28
6. Step 6: Final answer
   x = 7,890.82