Finding the Fourth Proportional to 6,411.18, 9,612.96 and 3,077.82

Step by Step Solution

1. Step 1: Write the proportion equation
   6,411.18 : 9,612.96 = 3,077.82 : x
2. Step 2: Convert to fraction form
   6,411.18/9,612.96 = 3,077.82/x
3. Step 3: Cross multiply
   6,411.18x = 9,612.96 × 3,077.82
4. Step 4: Simplify right side
   6,411.18x = 29,586,960.55
5. Step 5: Solve for x
   x = 29,586,960.55/6,411.18
6. Step 6: Final answer
   x = 4,614.90