Finding the Fourth Proportional to 12,757.68, 17,608.32 and 8,046.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,757.68 : 17,608.32 = 8,046.72 : x
2. Step 2: Convert to fraction form
   12,757.68/17,608.32 = 8,046.72/x
3. Step 3: Cross multiply
   12,757.68x = 17,608.32 × 8,046.72
4. Step 4: Simplify right side
   12,757.68x = 141,689,220.71
5. Step 5: Solve for x
   x = 141,689,220.71/12,757.68
6. Step 6: Final answer
   x = 11,106.19