Finding the Fourth Proportional to 9,910.31, 13,674.08 and 5,716.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.31 : 13,674.08 = 5,716.13 : x
2. Step 2: Convert to fraction form
   9,910.31/13,674.08 = 5,716.13/x
3. Step 3: Cross multiply
   9,910.31x = 13,674.08 × 5,716.13
4. Step 4: Simplify right side
   9,910.31x = 78,162,764.83
5. Step 5: Solve for x
   x = 78,162,764.83/9,910.31
6. Step 6: Final answer
   x = 7,887.02