Finding the Fourth Proportional to 12,949.00, 17,937.30 and 12,686.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,949.00 : 17,937.30 = 12,686.56 : x
2. Step 2: Convert to fraction form
   12,949.00/17,937.30 = 12,686.56/x
3. Step 3: Cross multiply
   12,949.00x = 17,937.30 × 12,686.56
4. Step 4: Simplify right side
   12,949.00x = 227,562,564.06
5. Step 5: Solve for x
   x = 227,562,564.06/12,949.00
6. Step 6: Final answer
   x = 17,573.76