Finding the Fourth Proportional to 12,705.71, 17,536.81 and 8,456.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,705.71 : 17,536.81 = 8,456.94 : x
2. Step 2: Convert to fraction form
   12,705.71/17,536.81 = 8,456.94/x
3. Step 3: Cross multiply
   12,705.71x = 17,536.81 × 8,456.94
4. Step 4: Simplify right side
   12,705.71x = 148,307,720.89
5. Step 5: Solve for x
   x = 148,307,720.89/12,705.71
6. Step 6: Final answer
   x = 11,672.52