Finding the Fourth Proportional to 6,131.50, 8,461.16 and 3,478.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,131.50 : 8,461.16 = 3,478.84 : x
2. Step 2: Convert to fraction form
   6,131.50/8,461.16 = 3,478.84/x
3. Step 3: Cross multiply
   6,131.50x = 8,461.16 × 3,478.84
4. Step 4: Simplify right side
   6,131.50x = 29,435,021.85
5. Step 5: Solve for x
   x = 29,435,021.85/6,131.50
6. Step 6: Final answer
   x = 4,800.62