Finding the Fourth Proportional to 6,129.12, 8,454.69 and 3,769.59

Step by Step Solution

1. Step 1: Write the proportion equation
   6,129.12 : 8,454.69 = 3,769.59 : x
2. Step 2: Convert to fraction form
   6,129.12/8,454.69 = 3,769.59/x
3. Step 3: Cross multiply
   6,129.12x = 8,454.69 × 3,769.59
4. Step 4: Simplify right side
   6,129.12x = 31,870,714.88
5. Step 5: Solve for x
   x = 31,870,714.88/6,129.12
6. Step 6: Final answer
   x = 5,199.88