Finding the Fourth Proportional to 6,646.02, 9,171.63 and 3,813.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,646.02 : 9,171.63 = 3,813.72 : x
2. Step 2: Convert to fraction form
   6,646.02/9,171.63 = 3,813.72/x
3. Step 3: Cross multiply
   6,646.02x = 9,171.63 × 3,813.72
4. Step 4: Simplify right side
   6,646.02x = 34,978,028.76
5. Step 5: Solve for x
   x = 34,978,028.76/6,646.02
6. Step 6: Final answer
   x = 5,263.00