Finding the Fourth Proportional to 8,758.38, 12,086.52 and 4,779.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758.38 : 12,086.52 = 4,779.72 : x
2. Step 2: Convert to fraction form
   8,758.38/12,086.52 = 4,779.72/x
3. Step 3: Cross multiply
   8,758.38x = 12,086.52 × 4,779.72
4. Step 4: Simplify right side
   8,758.38x = 57,770,181.37
5. Step 5: Solve for x
   x = 57,770,181.37/8,758.38
6. Step 6: Final answer
   x = 6,595.99