Finding the Fourth Proportional to 6,272.89, 8,655.05 and 3,620.30

Step by Step Solution

1. Step 1: Write the proportion equation
   6,272.89 : 8,655.05 = 3,620.30 : x
2. Step 2: Convert to fraction form
   6,272.89/8,655.05 = 3,620.30/x
3. Step 3: Cross multiply
   6,272.89x = 8,655.05 × 3,620.30
4. Step 4: Simplify right side
   6,272.89x = 31,333,843.29
5. Step 5: Solve for x
   x = 31,333,843.29/6,272.89
6. Step 6: Final answer
   x = 4,995.12