Finding the Fourth Proportional to 11,380.32, 17,069.28 and 3,589.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,380.32 : 17,069.28 = 3,589.20 : x
2. Step 2: Convert to fraction form
   11,380.32/17,069.28 = 3,589.20/x
3. Step 3: Cross multiply
   11,380.32x = 17,069.28 × 3,589.20
4. Step 4: Simplify right side
   11,380.32x = 61,265,059.78
5. Step 5: Solve for x
   x = 61,265,059.78/11,380.32
6. Step 6: Final answer
   x = 5,383.42