Finding the Fourth Proportional to 3,124.82, 4,303.50 and 3,056.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,124.82 : 4,303.50 = 3,056.78 : x
2. Step 2: Convert to fraction form
   3,124.82/4,303.50 = 3,056.78/x
3. Step 3: Cross multiply
   3,124.82x = 4,303.50 × 3,056.78
4. Step 4: Simplify right side
   3,124.82x = 13,154,852.73
5. Step 5: Solve for x
   x = 13,154,852.73/3,124.82
6. Step 6: Final answer
   x = 4,209.80