Finding the Fourth Proportional to 6,073.10, 8,380.71 and 3,420.45

Step by Step Solution

1. Step 1: Write the proportion equation
   6,073.10 : 8,380.71 = 3,420.45 : x
2. Step 2: Convert to fraction form
   6,073.10/8,380.71 = 3,420.45/x
3. Step 3: Cross multiply
   6,073.10x = 8,380.71 × 3,420.45
4. Step 4: Simplify right side
   6,073.10x = 28,665,799.52
5. Step 5: Solve for x
   x = 28,665,799.52/6,073.10
6. Step 6: Final answer
   x = 4,720.12