Finding the Fourth Proportional to 6,807.78, 9,400.14 and 4,541.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,807.78 : 9,400.14 = 4,541.31 : x
2. Step 2: Convert to fraction form
   6,807.78/9,400.14 = 4,541.31/x
3. Step 3: Cross multiply
   6,807.78x = 9,400.14 × 4,541.31
4. Step 4: Simplify right side
   6,807.78x = 42,688,949.78
5. Step 5: Solve for x
   x = 42,688,949.78/6,807.78
6. Step 6: Final answer
   x = 6,270.61