Finding the Fourth Proportional to 8,756.98, 12,084.62 and 4,778.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,756.98 : 12,084.62 = 4,778.12 : x
2. Step 2: Convert to fraction form
   8,756.98/12,084.62 = 4,778.12/x
3. Step 3: Cross multiply
   8,756.98x = 12,084.62 × 4,778.12
4. Step 4: Simplify right side
   8,756.98x = 57,741,764.51
5. Step 5: Solve for x
   x = 57,741,764.51/8,756.98
6. Step 6: Final answer
   x = 6,593.80