Finding the Fourth Proportional to 11,364.72, 17,046.68 and 3,969.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,364.72 : 17,046.68 = 3,969.15 : x
2. Step 2: Convert to fraction form
   11,364.72/17,046.68 = 3,969.15/x
3. Step 3: Cross multiply
   11,364.72x = 17,046.68 × 3,969.15
4. Step 4: Simplify right side
   11,364.72x = 67,660,810.08
5. Step 5: Solve for x
   x = 67,660,810.08/11,364.72
6. Step 6: Final answer
   x = 5,953.58