Finding the Fourth Proportional to 13,003.91, 17,944.96 and 7,338.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,003.91 : 17,944.96 = 7,338.80 : x
2. Step 2: Convert to fraction form
   13,003.91/17,944.96 = 7,338.80/x
3. Step 3: Cross multiply
   13,003.91x = 17,944.96 × 7,338.80
4. Step 4: Simplify right side
   13,003.91x = 131,694,472.45
5. Step 5: Solve for x
   x = 131,694,472.45/13,003.91
6. Step 6: Final answer
   x = 10,127.30