Finding the Fourth Proportional to 11,615.23, 16,031.57 and 7,636.71

Step by Step Solution

1. Step 1: Write the proportion equation
   11,615.23 : 16,031.57 = 7,636.71 : x
2. Step 2: Convert to fraction form
   11,615.23/16,031.57 = 7,636.71/x
3. Step 3: Cross multiply
   11,615.23x = 16,031.57 × 7,636.71
4. Step 4: Simplify right side
   11,615.23x = 122,428,515.83
5. Step 5: Solve for x
   x = 122,428,515.83/11,615.23
6. Step 6: Final answer
   x = 10,540.34