Finding the Fourth Proportional to 10,615.74, 14,635.06 and 8,469.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,615.74 : 14,635.06 = 8,469.57 : x
2. Step 2: Convert to fraction form
   10,615.74/14,635.06 = 8,469.57/x
3. Step 3: Cross multiply
   10,615.74x = 14,635.06 × 8,469.57
4. Step 4: Simplify right side
   10,615.74x = 123,952,665.12
5. Step 5: Solve for x
   x = 123,952,665.12/10,615.74
6. Step 6: Final answer
   x = 11,676.31