Finding the Fourth Proportional to 12,956.49, 17,875.35 and 7,650.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,956.49 : 17,875.35 = 7,650.18 : x
2. Step 2: Convert to fraction form
   12,956.49/17,875.35 = 7,650.18/x
3. Step 3: Cross multiply
   12,956.49x = 17,875.35 × 7,650.18
4. Step 4: Simplify right side
   12,956.49x = 136,749,645.06
5. Step 5: Solve for x
   x = 136,749,645.06/12,956.49
6. Step 6: Final answer
   x = 10,554.53