Finding the Fourth Proportional to 8,571.56, 12,846.74 and 5,058

Step by Step Solution

1. Step 1: Write the proportion equation
   8,571.56 : 12,846.74 = 5,058 : x
2. Step 2: Convert to fraction form
   8,571.56/12,846.74 = 5,058/x
3. Step 3: Cross multiply
   8,571.56x = 12,846.74 × 5,058
4. Step 4: Simplify right side
   8,571.56x = 64,978,785.63
5. Step 5: Solve for x
   x = 64,978,785.63/8,571.56
6. Step 6: Final answer
   x = 7,580.75