Finding the Fourth Proportional to 13,050.74, 18,009.83 and 7,673.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,050.74 : 18,009.83 = 7,673.78 : x
2. Step 2: Convert to fraction form
   13,050.74/18,009.83 = 7,673.78/x
3. Step 3: Cross multiply
   13,050.74x = 18,009.83 × 7,673.78
4. Step 4: Simplify right side
   13,050.74x = 138,203,479.91
5. Step 5: Solve for x
   x = 138,203,479.91/13,050.74
6. Step 6: Final answer
   x = 10,589.71