Finding the Fourth Proportional to 12,864.42, 17,752.77 and 8,152.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,864.42 : 17,752.77 = 8,152.56 : x
2. Step 2: Convert to fraction form
   12,864.42/17,752.77 = 8,152.56/x
3. Step 3: Cross multiply
   12,864.42x = 17,752.77 × 8,152.56
4. Step 4: Simplify right side
   12,864.42x = 144,730,522.59
5. Step 5: Solve for x
   x = 144,730,522.59/12,864.42
6. Step 6: Final answer
   x = 11,250.45