Finding the Fourth Proportional to 13,323.25, 19,988.79 and 3,963.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,323.25 : 19,988.79 = 3,963.34 : x
2. Step 2: Convert to fraction form
   13,323.25/19,988.79 = 3,963.34/x
3. Step 3: Cross multiply
   13,323.25x = 19,988.79 × 3,963.34
4. Step 4: Simplify right side
   13,323.25x = 79,222,370.96
5. Step 5: Solve for x
   x = 79,222,370.96/13,323.25
6. Step 6: Final answer
   x = 5,946.17