Finding the Fourth Proportional to 6,179.78, 8,526.81 and 3,528.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,179.78 : 8,526.81 = 3,528.05 : x
2. Step 2: Convert to fraction form
   6,179.78/8,526.81 = 3,528.05/x
3. Step 3: Cross multiply
   6,179.78x = 8,526.81 × 3,528.05
4. Step 4: Simplify right side
   6,179.78x = 30,082,969.39
5. Step 5: Solve for x
   x = 30,082,969.39/6,179.78
6. Step 6: Final answer
   x = 4,867.97