Finding the Fourth Proportional to 11,578.42, 15,972.33 and 7,322.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,578.42 : 15,972.33 = 7,322.31 : x
2. Step 2: Convert to fraction form
   11,578.42/15,972.33 = 7,322.31/x
3. Step 3: Cross multiply
   11,578.42x = 15,972.33 × 7,322.31
4. Step 4: Simplify right side
   11,578.42x = 116,954,379.14
5. Step 5: Solve for x
   x = 116,954,379.14/11,578.42
6. Step 6: Final answer
   x = 10,101.06