Finding the Fourth Proportional to 5,755.72, 8,625.06 and 2,978.68

Step by Step Solution

1. Step 1: Write the proportion equation
   5,755.72 : 8,625.06 = 2,978.68 : x
2. Step 2: Convert to fraction form
   5,755.72/8,625.06 = 2,978.68/x
3. Step 3: Cross multiply
   5,755.72x = 8,625.06 × 2,978.68
4. Step 4: Simplify right side
   5,755.72x = 25,691,293.72
5. Step 5: Solve for x
   x = 25,691,293.72/5,755.72
6. Step 6: Final answer
   x = 4,463.61