Finding the Fourth Proportional to 13,300.79, 19,955.09 and 3,941.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.79 : 19,955.09 = 3,941.05 : x
2. Step 2: Convert to fraction form
   13,300.79/19,955.09 = 3,941.05/x
3. Step 3: Cross multiply
   13,300.79x = 19,955.09 × 3,941.05
4. Step 4: Simplify right side
   13,300.79x = 78,644,007.44
5. Step 5: Solve for x
   x = 78,644,007.44/13,300.79
6. Step 6: Final answer
   x = 5,912.73