Finding the Fourth Proportional to 13,822.84, 20,730.01 and 3,959.47

Step by Step Solution

1. Step 1: Write the proportion equation
   13,822.84 : 20,730.01 = 3,959.47 : x
2. Step 2: Convert to fraction form
   13,822.84/20,730.01 = 3,959.47/x
3. Step 3: Cross multiply
   13,822.84x = 20,730.01 × 3,959.47
4. Step 4: Simplify right side
   13,822.84x = 82,079,852.69
5. Step 5: Solve for x
   x = 82,079,852.69/13,822.84
6. Step 6: Final answer
   x = 5,937.99