Finding the Fourth Proportional to 8,779.05, 13,171.86 and 4,559.67

Step by Step Solution

1. Step 1: Write the proportion equation
   8,779.05 : 13,171.86 = 4,559.67 : x
2. Step 2: Convert to fraction form
   8,779.05/13,171.86 = 4,559.67/x
3. Step 3: Cross multiply
   8,779.05x = 13,171.86 × 4,559.67
4. Step 4: Simplify right side
   8,779.05x = 60,059,334.89
5. Step 5: Solve for x
   x = 60,059,334.89/8,779.05
6. Step 6: Final answer
   x = 6,841.21