Finding the Fourth Proportional to 9,096.52, 13,578.42 and 7,989.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,096.52 : 13,578.42 = 7,989.38 : x
2. Step 2: Convert to fraction form
   9,096.52/13,578.42 = 7,989.38/x
3. Step 3: Cross multiply
   9,096.52x = 13,578.42 × 7,989.38
4. Step 4: Simplify right side
   9,096.52x = 108,483,157.18
5. Step 5: Solve for x
   x = 108,483,157.18/9,096.52
6. Step 6: Final answer
   x = 11,925.79