Finding the Fourth Proportional to 6,118.41, 8,440.50 and 4,129.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,118.41 : 8,440.50 = 4,129.59 : x
2. Step 2: Convert to fraction form
   6,118.41/8,440.50 = 4,129.59/x
3. Step 3: Cross multiply
   6,118.41x = 8,440.50 × 4,129.59
4. Step 4: Simplify right side
   6,118.41x = 34,855,804.40
5. Step 5: Solve for x
   x = 34,855,804.40/6,118.41
6. Step 6: Final answer
   x = 5,696.87