Finding the Fourth Proportional to 3,800.72, 5,693.12 and 3,056.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,800.72 : 5,693.12 = 3,056.30 : x
2. Step 2: Convert to fraction form
   3,800.72/5,693.12 = 3,056.30/x
3. Step 3: Cross multiply
   3,800.72x = 5,693.12 × 3,056.30
4. Step 4: Simplify right side
   3,800.72x = 17,399,904.53
5. Step 5: Solve for x
   x = 17,399,904.53/3,800.72
6. Step 6: Final answer
   x = 4,578.06