Finding the Fourth Proportional to 13,362.12, 18,439.71 and 7,694.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,362.12 : 18,439.71 = 7,694.82 : x
2. Step 2: Convert to fraction form
   13,362.12/18,439.71 = 7,694.82/x
3. Step 3: Cross multiply
   13,362.12x = 18,439.71 × 7,694.82
4. Step 4: Simplify right side
   13,362.12x = 141,890,249.30
5. Step 5: Solve for x
   x = 141,890,249.30/13,362.12
6. Step 6: Final answer
   x = 10,618.84