Finding the Fourth Proportional to 8,579.39, 12,871.31 and 5,024.51

Step by Step Solution

1. Step 1: Write the proportion equation
   8,579.39 : 12,871.31 = 5,024.51 : x
2. Step 2: Convert to fraction form
   8,579.39/12,871.31 = 5,024.51/x
3. Step 3: Cross multiply
   8,579.39x = 12,871.31 × 5,024.51
4. Step 4: Simplify right side
   8,579.39x = 64,672,000.69
5. Step 5: Solve for x
   x = 64,672,000.69/8,579.39
6. Step 6: Final answer
   x = 7,538.07