Finding the Fourth Proportional to 12,357.35, 17,043.79 and 8,949.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357.35 : 17,043.79 = 8,949.39 : x
2. Step 2: Convert to fraction form
   12,357.35/17,043.79 = 8,949.39/x
3. Step 3: Cross multiply
   12,357.35x = 17,043.79 × 8,949.39
4. Step 4: Simplify right side
   12,357.35x = 152,531,479.45
5. Step 5: Solve for x
   x = 152,531,479.45/12,357.35
6. Step 6: Final answer
   x = 12,343.38