Finding the Fourth Proportional to 11,958.69, 17,939.61 and 3,950.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,958.69 : 17,939.61 = 3,950.80 : x
2. Step 2: Convert to fraction form
   11,958.69/17,939.61 = 3,950.80/x
3. Step 3: Cross multiply
   11,958.69x = 17,939.61 × 3,950.80
4. Step 4: Simplify right side
   11,958.69x = 70,875,808.46
5. Step 5: Solve for x
   x = 70,875,808.46/11,958.69
6. Step 6: Final answer
   x = 5,926.72