Finding the Fourth Proportional to 12,371.56, 17,075.94 and 8,399.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,371.56 : 17,075.94 = 8,399.32 : x
2. Step 2: Convert to fraction form
   12,371.56/17,075.94 = 8,399.32/x
3. Step 3: Cross multiply
   12,371.56x = 17,075.94 × 8,399.32
4. Step 4: Simplify right side
   12,371.56x = 143,426,284.36
5. Step 5: Solve for x
   x = 143,426,284.36/12,371.56
6. Step 6: Final answer
   x = 11,593.23