Finding the Fourth Proportional to 13,164.38, 19,749.98 and 3,930.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,164.38 : 19,749.98 = 3,930.38 : x
2. Step 2: Convert to fraction form
   13,164.38/19,749.98 = 3,930.38/x
3. Step 3: Cross multiply
   13,164.38x = 19,749.98 × 3,930.38
4. Step 4: Simplify right side
   13,164.38x = 77,624,837.47
5. Step 5: Solve for x
   x = 77,624,837.47/13,164.38
6. Step 6: Final answer
   x = 5,896.58