Finding the Fourth Proportional to 8,593.91, 12,865.34 and 4,686.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,593.91 : 12,865.34 = 4,686.47 : x
2. Step 2: Convert to fraction form
   8,593.91/12,865.34 = 4,686.47/x
3. Step 3: Cross multiply
   8,593.91x = 12,865.34 × 4,686.47
4. Step 4: Simplify right side
   8,593.91x = 60,293,073.83
5. Step 5: Solve for x
   x = 60,293,073.83/8,593.91
6. Step 6: Final answer
   x = 7,015.79