Finding the Fourth Proportional to 6,428.51, 8,871.78 and 3,596.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,428.51 : 8,871.78 = 3,596.15 : x
2. Step 2: Convert to fraction form
   6,428.51/8,871.78 = 3,596.15/x
3. Step 3: Cross multiply
   6,428.51x = 8,871.78 × 3,596.15
4. Step 4: Simplify right side
   6,428.51x = 31,904,287.31
5. Step 5: Solve for x
   x = 31,904,287.31/6,428.51
6. Step 6: Final answer
   x = 4,962.94