Finding the Fourth Proportional to 9,910.69, 13,676.75 and 5,718.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.69 : 13,676.75 = 5,718.94 : x
2. Step 2: Convert to fraction form
   9,910.69/13,676.75 = 5,718.94/x
3. Step 3: Cross multiply
   9,910.69x = 13,676.75 × 5,718.94
4. Step 4: Simplify right side
   9,910.69x = 78,216,471.30
5. Step 5: Solve for x
   x = 78,216,471.30/9,910.69
6. Step 6: Final answer
   x = 7,892.13