Finding the Fourth Proportional to 12,975.09, 17,908.16 and 8,443.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,975.09 : 17,908.16 = 8,443.37 : x
2. Step 2: Convert to fraction form
   12,975.09/17,908.16 = 8,443.37/x
3. Step 3: Cross multiply
   12,975.09x = 17,908.16 × 8,443.37
4. Step 4: Simplify right side
   12,975.09x = 151,205,089.14
5. Step 5: Solve for x
   x = 151,205,089.14/12,975.09
6. Step 6: Final answer
   x = 11,653.49