Finding the Fourth Proportional to 11,870.24, 17,799.34 and 3,969.94

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870.24 : 17,799.34 = 3,969.94 : x
2. Step 2: Convert to fraction form
   11,870.24/17,799.34 = 3,969.94/x
3. Step 3: Cross multiply
   11,870.24x = 17,799.34 × 3,969.94
4. Step 4: Simplify right side
   11,870.24x = 70,662,311.84
5. Step 5: Solve for x
   x = 70,662,311.84/11,870.24
6. Step 6: Final answer
   x = 5,952.90