Finding the Fourth Proportional to 6,945.89, 10,422.89 and 4,177.85

Step by Step Solution

1. Step 1: Write the proportion equation
   6,945.89 : 10,422.89 = 4,177.85 : x
2. Step 2: Convert to fraction form
   6,945.89/10,422.89 = 4,177.85/x
3. Step 3: Cross multiply
   6,945.89x = 10,422.89 × 4,177.85
4. Step 4: Simplify right side
   6,945.89x = 43,545,250.10
5. Step 5: Solve for x
   x = 43,545,250.10/6,945.89
6. Step 6: Final answer
   x = 6,269.21