Finding the Fourth Proportional to 11,300.96, 16,956.24 and 8,708.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,300.96 : 16,956.24 = 8,708.96 : x
2. Step 2: Convert to fraction form
   11,300.96/16,956.24 = 8,708.96/x
3. Step 3: Cross multiply
   11,300.96x = 16,956.24 × 8,708.96
4. Step 4: Simplify right side
   11,300.96x = 147,671,215.91
5. Step 5: Solve for x
   x = 147,671,215.91/11,300.96
6. Step 6: Final answer
   x = 13,067.14