Finding the Fourth Proportional to 8,758.37, 12,086.81 and 4,779.74

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758.37 : 12,086.81 = 4,779.74 : x
2. Step 2: Convert to fraction form
   8,758.37/12,086.81 = 4,779.74/x
3. Step 3: Cross multiply
   8,758.37x = 12,086.81 × 4,779.74
4. Step 4: Simplify right side
   8,758.37x = 57,771,851.40
5. Step 5: Solve for x
   x = 57,771,851.40/8,758.37
6. Step 6: Final answer
   x = 6,596.18