Finding the Fourth Proportional to 8,718.96, 12,028.89 and 5,359.08

Step by Step Solution

1. Step 1: Write the proportion equation
   8,718.96 : 12,028.89 = 5,359.08 : x
2. Step 2: Convert to fraction form
   8,718.96/12,028.89 = 5,359.08/x
3. Step 3: Cross multiply
   8,718.96x = 12,028.89 × 5,359.08
4. Step 4: Simplify right side
   8,718.96x = 64,463,783.82
5. Step 5: Solve for x
   x = 64,463,783.82/8,718.96
6. Step 6: Final answer
   x = 7,393.52