Finding the Fourth Proportional to 8,359.48, 12,617.77 and 8,359.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,359.48 : 12,617.77 = 8,359.48 : x
2. Step 2: Convert to fraction form
   8,359.48/12,617.77 = 8,359.48/x
3. Step 3: Cross multiply
   8,359.48x = 12,617.77 × 8,359.48
4. Step 4: Simplify right side
   8,359.48x = 105,477,995.96
5. Step 5: Solve for x
   x = 105,477,995.96/8,359.48
6. Step 6: Final answer
   x = 12,617.77