Finding the Fourth Proportional to 12,570.76, 17,359.32 and 8,104.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,570.76 : 17,359.32 = 8,104.96 : x
2. Step 2: Convert to fraction form
   12,570.76/17,359.32 = 8,104.96/x
3. Step 3: Cross multiply
   12,570.76x = 17,359.32 × 8,104.96
4. Step 4: Simplify right side
   12,570.76x = 140,696,594.23
5. Step 5: Solve for x
   x = 140,696,594.23/12,570.76
6. Step 6: Final answer
   x = 11,192.37