Finding the Fourth Proportional to 13,007.40, 17,945.79 and 7,341.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,007.40 : 17,945.79 = 7,341.48 : x
2. Step 2: Convert to fraction form
   13,007.40/17,945.79 = 7,341.48/x
3. Step 3: Cross multiply
   13,007.40x = 17,945.79 × 7,341.48
4. Step 4: Simplify right side
   13,007.40x = 131,748,658.37
5. Step 5: Solve for x
   x = 131,748,658.37/13,007.40
6. Step 6: Final answer
   x = 10,128.75