Finding the Fourth Proportional to 10,799.58, 14,905.33 and 8,578.41

Step by Step Solution

1. Step 1: Write the proportion equation
   10,799.58 : 14,905.33 = 8,578.41 : x
2. Step 2: Convert to fraction form
   10,799.58/14,905.33 = 8,578.41/x
3. Step 3: Cross multiply
   10,799.58x = 14,905.33 × 8,578.41
4. Step 4: Simplify right side
   10,799.58x = 127,864,086.68
5. Step 5: Solve for x
   x = 127,864,086.68/10,799.58
6. Step 6: Final answer
   x = 11,839.72