Finding the Fourth Proportional to 13,340.69, 18,411.77 and 7,751.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,340.69 : 18,411.77 = 7,751.69 : x
2. Step 2: Convert to fraction form
   13,340.69/18,411.77 = 7,751.69/x
3. Step 3: Cross multiply
   13,340.69x = 18,411.77 × 7,751.69
4. Step 4: Simplify right side
   13,340.69x = 142,722,333.39
5. Step 5: Solve for x
   x = 142,722,333.39/13,340.69
6. Step 6: Final answer
   x = 10,698.27