Finding the Fourth Proportional to 8,572.25, 12,847.76 and 5,058.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,572.25 : 12,847.76 = 5,058.69 : x
2. Step 2: Convert to fraction form
   8,572.25/12,847.76 = 5,058.69/x
3. Step 3: Cross multiply
   8,572.25x = 12,847.76 × 5,058.69
4. Step 4: Simplify right side
   8,572.25x = 64,992,835.03
5. Step 5: Solve for x
   x = 64,992,835.03/8,572.25
6. Step 6: Final answer
   x = 7,581.78