Finding the Fourth Proportional to 6,128, 8,456.72 and 3,333.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128 : 8,456.72 = 3,333.50 : x
2. Step 2: Convert to fraction form
   6,128/8,456.72 = 3,333.50/x
3. Step 3: Cross multiply
   6,128x = 8,456.72 × 3,333.50
4. Step 4: Simplify right side
   6,128x = 28,190,476.12
5. Step 5: Solve for x
   x = 28,190,476.12/6,128
6. Step 6: Final answer
   x = 4,600.27