Finding the Fourth Proportional to 12,872.56, 17,766.68 and 8,153.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,872.56 : 17,766.68 = 8,153.52 : x
2. Step 2: Convert to fraction form
   12,872.56/17,766.68 = 8,153.52/x
3. Step 3: Cross multiply
   12,872.56x = 17,766.68 × 8,153.52
4. Step 4: Simplify right side
   12,872.56x = 144,860,980.71
5. Step 5: Solve for x
   x = 144,860,980.71/12,872.56
6. Step 6: Final answer
   x = 11,253.47