Finding the Fourth Proportional to 6,861.98, 9,469.57 and 3,718.16

Step by Step Solution

1. Step 1: Write the proportion equation
   6,861.98 : 9,469.57 = 3,718.16 : x
2. Step 2: Convert to fraction form
   6,861.98/9,469.57 = 3,718.16/x
3. Step 3: Cross multiply
   6,861.98x = 9,469.57 × 3,718.16
4. Step 4: Simplify right side
   6,861.98x = 35,209,376.39
5. Step 5: Solve for x
   x = 35,209,376.39/6,861.98
6. Step 6: Final answer
   x = 5,131.08