Finding the Fourth Proportional to 6,109.79, 8,426.31 and 4,117.73

Step by Step Solution

1. Step 1: Write the proportion equation
   6,109.79 : 8,426.31 = 4,117.73 : x
2. Step 2: Convert to fraction form
   6,109.79/8,426.31 = 4,117.73/x
3. Step 3: Cross multiply
   6,109.79x = 8,426.31 × 4,117.73
4. Step 4: Simplify right side
   6,109.79x = 34,697,269.48
5. Step 5: Solve for x
   x = 34,697,269.48/6,109.79
6. Step 6: Final answer
   x = 5,678.96