Finding the Fourth Proportional to 13,003.74, 17,945.14 and 7,339.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,003.74 : 17,945.14 = 7,339.68 : x
2. Step 2: Convert to fraction form
   13,003.74/17,945.14 = 7,339.68/x
3. Step 3: Cross multiply
   13,003.74x = 17,945.14 × 7,339.68
4. Step 4: Simplify right side
   13,003.74x = 131,711,585.16
5. Step 5: Solve for x
   x = 131,711,585.16/13,003.74
6. Step 6: Final answer
   x = 10,128.75