Finding the Fourth Proportional to 6,215.01, 8,577.89 and 3,977.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,215.01 : 8,577.89 = 3,977.83 : x
2. Step 2: Convert to fraction form
   6,215.01/8,577.89 = 3,977.83/x
3. Step 3: Cross multiply
   6,215.01x = 8,577.89 × 3,977.83
4. Step 4: Simplify right side
   6,215.01x = 34,121,388.18
5. Step 5: Solve for x
   x = 34,121,388.18/6,215.01
6. Step 6: Final answer
   x = 5,490.16