Finding the Fourth Proportional to 12,610.56, 18,894.98 and 7,665.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,610.56 : 18,894.98 = 7,665.24 : x
2. Step 2: Convert to fraction form
   12,610.56/18,894.98 = 7,665.24/x
3. Step 3: Cross multiply
   12,610.56x = 18,894.98 × 7,665.24
4. Step 4: Simplify right side
   12,610.56x = 144,834,556.50
5. Step 5: Solve for x
   x = 144,834,556.50/12,610.56
6. Step 6: Final answer
   x = 11,485.18