Finding the Fourth Proportional to 12,660.37, 17,471.30 and 7,627.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,660.37 : 17,471.30 = 7,627.50 : x
2. Step 2: Convert to fraction form
   12,660.37/17,471.30 = 7,627.50/x
3. Step 3: Cross multiply
   12,660.37x = 17,471.30 × 7,627.50
4. Step 4: Simplify right side
   12,660.37x = 133,262,302.61
5. Step 5: Solve for x
   x = 133,262,302.61/12,660.37
6. Step 6: Final answer
   x = 10,525.94