Finding the Fourth Proportional to 30,648.82, 45,945.87 and 13,109.62

Step by Step Solution

1. Step 1: Write the proportion equation
   30,648.82 : 45,945.87 = 13,109.62 : x
2. Step 2: Convert to fraction form
   30,648.82/45,945.87 = 13,109.62/x
3. Step 3: Cross multiply
   30,648.82x = 45,945.87 × 13,109.62
4. Step 4: Simplify right side
   30,648.82x = 602,332,896.27
5. Step 5: Solve for x
   x = 602,332,896.27/30,648.82
6. Step 6: Final answer
   x = 19,652.73