Finding the Fourth Proportional to 6,109.46, 9,166.78 and 4,137.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,109.46 : 9,166.78 = 4,137.31 : x
2. Step 2: Convert to fraction form
   6,109.46/9,166.78 = 4,137.31/x
3. Step 3: Cross multiply
   6,109.46x = 9,166.78 × 4,137.31
4. Step 4: Simplify right side
   6,109.46x = 37,925,810.56
5. Step 5: Solve for x
   x = 37,925,810.56/6,109.46
6. Step 6: Final answer
   x = 6,207.72