Finding the Fourth Proportional to 6,128.88, 8,457.72 and 3,476.24

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.88 : 8,457.72 = 3,476.24 : x
2. Step 2: Convert to fraction form
   6,128.88/8,457.72 = 3,476.24/x
3. Step 3: Cross multiply
   6,128.88x = 8,457.72 × 3,476.24
4. Step 4: Simplify right side
   6,128.88x = 29,401,064.57
5. Step 5: Solve for x
   x = 29,401,064.57/6,128.88
6. Step 6: Final answer
   x = 4,797.13