Finding the Fourth Proportional to 13,039.94, 17,982.09 and 8,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,039.94 : 17,982.09 = 8,322.50 : x
2. Step 2: Convert to fraction form
   13,039.94/17,982.09 = 8,322.50/x
3. Step 3: Cross multiply
   13,039.94x = 17,982.09 × 8,322.50
4. Step 4: Simplify right side
   13,039.94x = 149,655,944.03
5. Step 5: Solve for x
   x = 149,655,944.03/13,039.94
6. Step 6: Final answer
   x = 11,476.74