Finding the Fourth Proportional to 8,751.78, 12,077.37 and 4,772.99

Step by Step Solution

1. Step 1: Write the proportion equation
   8,751.78 : 12,077.37 = 4,772.99 : x
2. Step 2: Convert to fraction form
   8,751.78/12,077.37 = 4,772.99/x
3. Step 3: Cross multiply
   8,751.78x = 12,077.37 × 4,772.99
4. Step 4: Simplify right side
   8,751.78x = 57,645,196.43
5. Step 5: Solve for x
   x = 57,645,196.43/8,751.78
6. Step 6: Final answer
   x = 6,586.68