Finding the Fourth Proportional to 11,969.21, 17,957.86 and 5,304.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,969.21 : 17,957.86 = 5,304.80 : x
2. Step 2: Convert to fraction form
   11,969.21/17,957.86 = 5,304.80/x
3. Step 3: Cross multiply
   11,969.21x = 17,957.86 × 5,304.80
4. Step 4: Simplify right side
   11,969.21x = 95,262,810.83
5. Step 5: Solve for x
   x = 95,262,810.83/11,969.21
6. Step 6: Final answer
   x = 7,958.99