Finding the Fourth Proportional to 13,007.69, 17,950.66 and 7,039.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,007.69 : 17,950.66 = 7,039.36 : x
2. Step 2: Convert to fraction form
   13,007.69/17,950.66 = 7,039.36/x
3. Step 3: Cross multiply
   13,007.69x = 17,950.66 × 7,039.36
4. Step 4: Simplify right side
   13,007.69x = 126,361,085.82
5. Step 5: Solve for x
   x = 126,361,085.82/13,007.69
6. Step 6: Final answer
   x = 9,714.34