Finding the Fourth Proportional to 8,755.26, 12,081.76 and 4,977.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,755.26 : 12,081.76 = 4,977.89 : x
2. Step 2: Convert to fraction form
   8,755.26/12,081.76 = 4,977.89/x
3. Step 3: Cross multiply
   8,755.26x = 12,081.76 × 4,977.89
4. Step 4: Simplify right side
   8,755.26x = 60,141,647.40
5. Step 5: Solve for x
   x = 60,141,647.40/8,755.26
6. Step 6: Final answer
   x = 6,869.21