Finding the Fourth Proportional to 6,116.64, 8,443.55 and 4,129.89

Step by Step Solution

1. Step 1: Write the proportion equation
   6,116.64 : 8,443.55 = 4,129.89 : x
2. Step 2: Convert to fraction form
   6,116.64/8,443.55 = 4,129.89/x
3. Step 3: Cross multiply
   6,116.64x = 8,443.55 × 4,129.89
4. Step 4: Simplify right side
   6,116.64x = 34,870,869.84
5. Step 5: Solve for x
   x = 34,870,869.84/6,116.64
6. Step 6: Final answer
   x = 5,700.98