Finding the Fourth Proportional to 11,104.89, 15,330.12 and 7,132.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,104.89 : 15,330.12 = 7,132.75 : x
2. Step 2: Convert to fraction form
   11,104.89/15,330.12 = 7,132.75/x
3. Step 3: Cross multiply
   11,104.89x = 15,330.12 × 7,132.75
4. Step 4: Simplify right side
   11,104.89x = 109,345,913.43
5. Step 5: Solve for x
   x = 109,345,913.43/11,104.89
6. Step 6: Final answer
   x = 9,846.65