Finding the Fourth Proportional to 3,124.35, 4,302.82 and 3,056.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,124.35 : 4,302.82 = 3,056.31 : x
2. Step 2: Convert to fraction form
   3,124.35/4,302.82 = 3,056.31/x
3. Step 3: Cross multiply
   3,124.35x = 4,302.82 × 3,056.31
4. Step 4: Simplify right side
   3,124.35x = 13,150,751.79
5. Step 5: Solve for x
   x = 13,150,751.79/3,124.35
6. Step 6: Final answer
   x = 4,209.12