Finding the Fourth Proportional to 11,909.42, 17,864.48 and 3,589.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,909.42 : 17,864.48 = 3,589.46 : x
2. Step 2: Convert to fraction form
   11,909.42/17,864.48 = 3,589.46/x
3. Step 3: Cross multiply
   11,909.42x = 17,864.48 × 3,589.46
4. Step 4: Simplify right side
   11,909.42x = 64,123,836.38
5. Step 5: Solve for x
   x = 64,123,836.38/11,909.42
6. Step 6: Final answer
   x = 5,384.30