Finding the Fourth Proportional to 3,419.30, 5,125.18 and 3,142.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,419.30 : 5,125.18 = 3,142.52 : x
2. Step 2: Convert to fraction form
   3,419.30/5,125.18 = 3,142.52/x
3. Step 3: Cross multiply
   3,419.30x = 5,125.18 × 3,142.52
4. Step 4: Simplify right side
   3,419.30x = 16,105,980.65
5. Step 5: Solve for x
   x = 16,105,980.65/3,419.30
6. Step 6: Final answer
   x = 4,710.32