Finding the Fourth Proportional to 11,306.70, 15,608.61 and 7,536.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,306.70 : 15,608.61 = 7,536.15 : x
2. Step 2: Convert to fraction form
   11,306.70/15,608.61 = 7,536.15/x
3. Step 3: Cross multiply
   11,306.70x = 15,608.61 × 7,536.15
4. Step 4: Simplify right side
   11,306.70x = 117,628,846.43
5. Step 5: Solve for x
   x = 117,628,846.43/11,306.70
6. Step 6: Final answer
   x = 10,403.46