Finding the Fourth Proportional to 13,716.94, 18,929.15 and 7,667.33

Step by Step Solution

1. Step 1: Write the proportion equation
   13,716.94 : 18,929.15 = 7,667.33 : x
2. Step 2: Convert to fraction form
   13,716.94/18,929.15 = 7,667.33/x
3. Step 3: Cross multiply
   13,716.94x = 18,929.15 × 7,667.33
4. Step 4: Simplify right side
   13,716.94x = 145,136,039.67
5. Step 5: Solve for x
   x = 145,136,039.67/13,716.94
6. Step 6: Final answer
   x = 10,580.79