Finding the Fourth Proportional to 8,759.34, 12,087.77 and 4,780.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,759.34 : 12,087.77 = 4,780.49 : x
2. Step 2: Convert to fraction form
   8,759.34/12,087.77 = 4,780.49/x
3. Step 3: Cross multiply
   8,759.34x = 12,087.77 × 4,780.49
4. Step 4: Simplify right side
   8,759.34x = 57,785,379.27
5. Step 5: Solve for x
   x = 57,785,379.27/8,759.34
6. Step 6: Final answer
   x = 6,597.00