Finding the Fourth Proportional to 9,189.83, 13,789.31 and 3,643.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,189.83 : 13,789.31 = 3,643.05 : x
2. Step 2: Convert to fraction form
   9,189.83/13,789.31 = 3,643.05/x
3. Step 3: Cross multiply
   9,189.83x = 13,789.31 × 3,643.05
4. Step 4: Simplify right side
   9,189.83x = 50,235,179.29
5. Step 5: Solve for x
   x = 50,235,179.29/9,189.83
6. Step 6: Final answer
   x = 5,466.39