Finding the Fourth Proportional to 12,036.95, 16,605.38 and 7,789.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,036.95 : 16,605.38 = 7,789.37 : x
2. Step 2: Convert to fraction form
   12,036.95/16,605.38 = 7,789.37/x
3. Step 3: Cross multiply
   12,036.95x = 16,605.38 × 7,789.37
4. Step 4: Simplify right side
   12,036.95x = 129,345,326.84
5. Step 5: Solve for x
   x = 129,345,326.84/12,036.95
6. Step 6: Final answer
   x = 10,745.69