Finding the Fourth Proportional to 12,385.09, 18,578.94 and 5,365.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385.09 : 18,578.94 = 5,365.82 : x
2. Step 2: Convert to fraction form
   12,385.09/18,578.94 = 5,365.82/x
3. Step 3: Cross multiply
   12,385.09x = 18,578.94 × 5,365.82
4. Step 4: Simplify right side
   12,385.09x = 99,691,247.83
5. Step 5: Solve for x
   x = 99,691,247.83/12,385.09
6. Step 6: Final answer
   x = 8,049.30