Finding the Fourth Proportional to 12,772.89, 17,634.68 and 8,746.45

Step by Step Solution

1. Step 1: Write the proportion equation
   12,772.89 : 17,634.68 = 8,746.45 : x
2. Step 2: Convert to fraction form
   12,772.89/17,634.68 = 8,746.45/x
3. Step 3: Cross multiply
   12,772.89x = 17,634.68 × 8,746.45
4. Step 4: Simplify right side
   12,772.89x = 154,240,846.89
5. Step 5: Solve for x
   x = 154,240,846.89/12,772.89
6. Step 6: Final answer
   x = 12,075.64