Finding the Fourth Proportional to 8,759.33, 13,131.69 and 5,979.11

Step by Step Solution

1. Step 1: Write the proportion equation
   8,759.33 : 13,131.69 = 5,979.11 : x
2. Step 2: Convert to fraction form
   8,759.33/13,131.69 = 5,979.11/x
3. Step 3: Cross multiply
   8,759.33x = 13,131.69 × 5,979.11
4. Step 4: Simplify right side
   8,759.33x = 78,515,753.34
5. Step 5: Solve for x
   x = 78,515,753.34/8,759.33
6. Step 6: Final answer
   x = 8,963.68