Finding the Fourth Proportional to 13,308.82, 19,959.82 and 3,946.65

Step by Step Solution

1. Step 1: Write the proportion equation
   13,308.82 : 19,959.82 = 3,946.65 : x
2. Step 2: Convert to fraction form
   13,308.82/19,959.82 = 3,946.65/x
3. Step 3: Cross multiply
   13,308.82x = 19,959.82 × 3,946.65
4. Step 4: Simplify right side
   13,308.82x = 78,774,423.60
5. Step 5: Solve for x
   x = 78,774,423.60/13,308.82
6. Step 6: Final answer
   x = 5,918.96