Finding the Fourth Proportional to 13,003.49, 17,944.80 and 7,339.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,003.49 : 17,944.80 = 7,339.43 : x
2. Step 2: Convert to fraction form
   13,003.49/17,944.80 = 7,339.43/x
3. Step 3: Cross multiply
   13,003.49x = 17,944.80 × 7,339.43
4. Step 4: Simplify right side
   13,003.49x = 131,704,513.74
5. Step 5: Solve for x
   x = 131,704,513.74/13,003.49
6. Step 6: Final answer
   x = 10,128.40