Finding the Fourth Proportional to 6,128.13, 8,456.82 and 3,333.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.13 : 8,456.82 = 3,333.63 : x
2. Step 2: Convert to fraction form
   6,128.13/8,456.82 = 3,333.63/x
3. Step 3: Cross multiply
   6,128.13x = 8,456.82 × 3,333.63
4. Step 4: Simplify right side
   6,128.13x = 28,191,908.86
5. Step 5: Solve for x
   x = 28,191,908.86/6,128.13
6. Step 6: Final answer
   x = 4,600.41