Finding the Fourth Proportional to 11,495.94, 17,265.79 and 7,143.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,495.94 : 17,265.79 = 7,143.81 : x
2. Step 2: Convert to fraction form
   11,495.94/17,265.79 = 7,143.81/x
3. Step 3: Cross multiply
   11,495.94x = 17,265.79 × 7,143.81
4. Step 4: Simplify right side
   11,495.94x = 123,343,530.71
5. Step 5: Solve for x
   x = 123,343,530.71/11,495.94
6. Step 6: Final answer
   x = 10,729.31