Finding the Fourth Proportional to 6,072.60, 8,380.98 and 3,420.52

Step by Step Solution

1. Step 1: Write the proportion equation
   6,072.60 : 8,380.98 = 3,420.52 : x
2. Step 2: Convert to fraction form
   6,072.60/8,380.98 = 3,420.52/x
3. Step 3: Cross multiply
   6,072.60x = 8,380.98 × 3,420.52
4. Step 4: Simplify right side
   6,072.60x = 28,667,309.71
5. Step 5: Solve for x
   x = 28,667,309.71/6,072.60
6. Step 6: Final answer
   x = 4,720.76