Finding the Fourth Proportional to 9,086.53, 13,563.50 and 7,979.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.53 : 13,563.50 = 7,979.36 : x
2. Step 2: Convert to fraction form
   9,086.53/13,563.50 = 7,979.36/x
3. Step 3: Cross multiply
   9,086.53x = 13,563.50 × 7,979.36
4. Step 4: Simplify right side
   9,086.53x = 108,228,062.82
5. Step 5: Solve for x
   x = 108,228,062.82/9,086.53
6. Step 6: Final answer
   x = 11,910.83