Finding the Fourth Proportional to 13,300.22, 19,947.56 and 3,938.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.22 : 19,947.56 = 3,938.04 : x
2. Step 2: Convert to fraction form
   13,300.22/19,947.56 = 3,938.04/x
3. Step 3: Cross multiply
   13,300.22x = 19,947.56 × 3,938.04
4. Step 4: Simplify right side
   13,300.22x = 78,554,291.64
5. Step 5: Solve for x
   x = 78,554,291.64/13,300.22
6. Step 6: Final answer
   x = 5,906.24