Finding the Fourth Proportional to 13,550.33, 18,698.71 and 7,500.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,550.33 : 18,698.71 = 7,500.31 : x
2. Step 2: Convert to fraction form
   13,550.33/18,698.71 = 7,500.31/x
3. Step 3: Cross multiply
   13,550.33x = 18,698.71 × 7,500.31
4. Step 4: Simplify right side
   13,550.33x = 140,246,121.60
5. Step 5: Solve for x
   x = 140,246,121.60/13,550.33
6. Step 6: Final answer
   x = 10,350.02