Finding the Fourth Proportional to 13,589.10, 20,382.71 and 3,727.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,589.10 : 20,382.71 = 3,727.62 : x
2. Step 2: Convert to fraction form
   13,589.10/20,382.71 = 3,727.62/x
3. Step 3: Cross multiply
   13,589.10x = 20,382.71 × 3,727.62
4. Step 4: Simplify right side
   13,589.10x = 75,978,978.81
5. Step 5: Solve for x
   x = 75,978,978.81/13,589.10
6. Step 6: Final answer
   x = 5,591.17