Finding the Fourth Proportional to 8,758.03, 12,085.98 and 4,779.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,758.03 : 12,085.98 = 4,779.21 : x
2. Step 2: Convert to fraction form
   8,758.03/12,085.98 = 4,779.21/x
3. Step 3: Cross multiply
   8,758.03x = 12,085.98 × 4,779.21
4. Step 4: Simplify right side
   8,758.03x = 57,761,352.15
5. Step 5: Solve for x
   x = 57,761,352.15/8,758.03
6. Step 6: Final answer
   x = 6,595.25