Finding the Fourth Proportional to 6,173.96, 8,520.88 and 3,485.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,173.96 : 8,520.88 = 3,485.72 : x
2. Step 2: Convert to fraction form
   6,173.96/8,520.88 = 3,485.72/x
3. Step 3: Cross multiply
   6,173.96x = 8,520.88 × 3,485.72
4. Step 4: Simplify right side
   6,173.96x = 29,701,401.83
5. Step 5: Solve for x
   x = 29,701,401.83/6,173.96
6. Step 6: Final answer
   x = 4,810.75