Finding the Fourth Proportional to 8,391.69, 12,582.02 and 4,694.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,391.69 : 12,582.02 = 4,694.31 : x
2. Step 2: Convert to fraction form
   8,391.69/12,582.02 = 4,694.31/x
3. Step 3: Cross multiply
   8,391.69x = 12,582.02 × 4,694.31
4. Step 4: Simplify right side
   8,391.69x = 59,063,878.83
5. Step 5: Solve for x
   x = 59,063,878.83/8,391.69
6. Step 6: Final answer
   x = 7,038.38