Finding the Fourth Proportional to 9,910.04, 13,673.46 and 5,718.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.04 : 13,673.46 = 5,718.28 : x
2. Step 2: Convert to fraction form
   9,910.04/13,673.46 = 5,718.28/x
3. Step 3: Cross multiply
   9,910.04x = 13,673.46 × 5,718.28
4. Step 4: Simplify right side
   9,910.04x = 78,188,672.85
5. Step 5: Solve for x
   x = 78,188,672.85/9,910.04
6. Step 6: Final answer
   x = 7,889.84