Finding the Fourth Proportional to 6,181.30, 8,531.72 and 3,530.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,181.30 : 8,531.72 = 3,530.25 : x
2. Step 2: Convert to fraction form
   6,181.30/8,531.72 = 3,530.25/x
3. Step 3: Cross multiply
   6,181.30x = 8,531.72 × 3,530.25
4. Step 4: Simplify right side
   6,181.30x = 30,119,104.53
5. Step 5: Solve for x
   x = 30,119,104.53/6,181.30
6. Step 6: Final answer
   x = 4,872.62