Finding the Fourth Proportional to 6,128.55, 8,457.16 and 3,334.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.55 : 8,457.16 = 3,334.05 : x
2. Step 2: Convert to fraction form
   6,128.55/8,457.16 = 3,334.05/x
3. Step 3: Cross multiply
   6,128.55x = 8,457.16 × 3,334.05
4. Step 4: Simplify right side
   6,128.55x = 28,196,577.63
5. Step 5: Solve for x
   x = 28,196,577.63/6,128.55
6. Step 6: Final answer
   x = 4,600.86