Finding the Fourth Proportional to 11,809.18, 17,724.75 and 5,969.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,809.18 : 17,724.75 = 5,969.89 : x
2. Step 2: Convert to fraction form
   11,809.18/17,724.75 = 5,969.89/x
3. Step 3: Cross multiply
   11,809.18x = 17,724.75 × 5,969.89
4. Step 4: Simplify right side
   11,809.18x = 105,814,807.78
5. Step 5: Solve for x
   x = 105,814,807.78/11,809.18
6. Step 6: Final answer
   x = 8,960.39