Finding the Fourth Proportional to 6,410.84, 9,617.80 and 3,123.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,410.84 : 9,617.80 = 3,123.18 : x
2. Step 2: Convert to fraction form
   6,410.84/9,617.80 = 3,123.18/x
3. Step 3: Cross multiply
   6,410.84x = 9,617.80 × 3,123.18
4. Step 4: Simplify right side
   6,410.84x = 30,038,120.60
5. Step 5: Solve for x
   x = 30,038,120.60/6,410.84
6. Step 6: Final answer
   x = 4,685.52