Finding the Fourth Proportional to 11,967.11, 17,951.55 and 3,647.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,967.11 : 17,951.55 = 3,647.84 : x
2. Step 2: Convert to fraction form
   11,967.11/17,951.55 = 3,647.84/x
3. Step 3: Cross multiply
   11,967.11x = 17,951.55 × 3,647.84
4. Step 4: Simplify right side
   11,967.11x = 65,484,382.15
5. Step 5: Solve for x
   x = 65,484,382.15/11,967.11
6. Step 6: Final answer
   x = 5,472.03