Finding the Fourth Proportional to 11,307.30, 15,609.43 and 7,536.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,307.30 : 15,609.43 = 7,536.75 : x
2. Step 2: Convert to fraction form
   11,307.30/15,609.43 = 7,536.75/x
3. Step 3: Cross multiply
   11,307.30x = 15,609.43 × 7,536.75
4. Step 4: Simplify right side
   11,307.30x = 117,644,280.04
5. Step 5: Solve for x
   x = 117,644,280.04/11,307.30
6. Step 6: Final answer
   x = 10,404.28