Finding the Fourth Proportional to 6,180.72, 8,530 and 3,528.52

Step by Step Solution

1. Step 1: Write the proportion equation
   6,180.72 : 8,530 = 3,528.52 : x
2. Step 2: Convert to fraction form
   6,180.72/8,530 = 3,528.52/x
3. Step 3: Cross multiply
   6,180.72x = 8,530 × 3,528.52
4. Step 4: Simplify right side
   6,180.72x = 30,098,275.60
5. Step 5: Solve for x
   x = 30,098,275.60/6,180.72
6. Step 6: Final answer
   x = 4,869.70