Finding the Fourth Proportional to 6,128.16, 9,196.80 and 3,009.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.16 : 9,196.80 = 3,009.84 : x
2. Step 2: Convert to fraction form
   6,128.16/9,196.80 = 3,009.84/x
3. Step 3: Cross multiply
   6,128.16x = 9,196.80 × 3,009.84
4. Step 4: Simplify right side
   6,128.16x = 27,680,896.51
5. Step 5: Solve for x
   x = 27,680,896.51/6,128.16
6. Step 6: Final answer
   x = 4,517.00