Finding the Fourth Proportional to 13,189.22, 19,785.78 and 3,829.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,189.22 : 19,785.78 = 3,829.31 : x
2. Step 2: Convert to fraction form
   13,189.22/19,785.78 = 3,829.31/x
3. Step 3: Cross multiply
   13,189.22x = 19,785.78 × 3,829.31
4. Step 4: Simplify right side
   13,189.22x = 75,765,885.21
5. Step 5: Solve for x
   x = 75,765,885.21/13,189.22
6. Step 6: Final answer
   x = 5,744.53