Finding the Fourth Proportional to 3,187.59, 4,760.21 and 3,153.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,187.59 : 4,760.21 = 3,153.30 : x
2. Step 2: Convert to fraction form
   3,187.59/4,760.21 = 3,153.30/x
3. Step 3: Cross multiply
   3,187.59x = 4,760.21 × 3,153.30
4. Step 4: Simplify right side
   3,187.59x = 15,010,354.43
5. Step 5: Solve for x
   x = 15,010,354.43/3,187.59
6. Step 6: Final answer
   x = 4,709.00