Finding the Fourth Proportional to 8,351.69, 12,498.52 and 5,187.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,351.69 : 12,498.52 = 5,187.83 : x
2. Step 2: Convert to fraction form
   8,351.69/12,498.52 = 5,187.83/x
3. Step 3: Cross multiply
   8,351.69x = 12,498.52 × 5,187.83
4. Step 4: Simplify right side
   8,351.69x = 64,840,131.28
5. Step 5: Solve for x
   x = 64,840,131.28/8,351.69
6. Step 6: Final answer
   x = 7,763.72