Finding the Fourth Proportional to 8,577, 12,865.12 and 3,314.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,577 : 12,865.12 = 3,314.52 : x
2. Step 2: Convert to fraction form
   8,577/12,865.12 = 3,314.52/x
3. Step 3: Cross multiply
   8,577x = 12,865.12 × 3,314.52
4. Step 4: Simplify right side
   8,577x = 42,641,697.54
5. Step 5: Solve for x
   x = 42,641,697.54/8,577
6. Step 6: Final answer
   x = 4,971.63