Finding the Fourth Proportional to 8,752.78, 13,131.71 and 2,829.54

Step by Step Solution

1. Step 1: Write the proportion equation
   8,752.78 : 13,131.71 = 2,829.54 : x
2. Step 2: Convert to fraction form
   8,752.78/13,131.71 = 2,829.54/x
3. Step 3: Cross multiply
   8,752.78x = 13,131.71 × 2,829.54
4. Step 4: Simplify right side
   8,752.78x = 37,156,698.71
5. Step 5: Solve for x
   x = 37,156,698.71/8,752.78
6. Step 6: Final answer
   x = 4,245.13