Finding the Fourth Proportional to 13,043.58, 18,012.83 and 11,144.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,043.58 : 18,012.83 = 11,144.00 : x
2. Step 2: Convert to fraction form
   13,043.58/18,012.83 = 11,144.00/x
3. Step 3: Cross multiply
   13,043.58x = 18,012.83 × 11,144.00
4. Step 4: Simplify right side
   13,043.58x = 200,734,831.74
5. Step 5: Solve for x
   x = 200,734,831.74/13,043.58
6. Step 6: Final answer
   x = 15,389.55