Finding the Fourth Proportional to 8,758.40, 12,086.52 and 4,779.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758.40 : 12,086.52 = 4,779.52 : x
2. Step 2: Convert to fraction form
   8,758.40/12,086.52 = 4,779.52/x
3. Step 3: Cross multiply
   8,758.40x = 12,086.52 × 4,779.52
4. Step 4: Simplify right side
   8,758.40x = 57,767,764.07
5. Step 5: Solve for x
   x = 57,767,764.07/8,758.40
6. Step 6: Final answer
   x = 6,595.70