Finding the Fourth Proportional to 10,015.38, 13,817.59 and 7,716.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,015.38 : 13,817.59 = 7,716.53 : x
2. Step 2: Convert to fraction form
   10,015.38/13,817.59 = 7,716.53/x
3. Step 3: Cross multiply
   10,015.38x = 13,817.59 × 7,716.53
4. Step 4: Simplify right side
   10,015.38x = 106,623,759.38
5. Step 5: Solve for x
   x = 106,623,759.38/10,015.38
6. Step 6: Final answer
   x = 10,646.00