Finding the Fourth Proportional to 6,080.72, 8,387.70 and 3,840.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,080.72 : 8,387.70 = 3,840.80 : x
2. Step 2: Convert to fraction form
   6,080.72/8,387.70 = 3,840.80/x
3. Step 3: Cross multiply
   6,080.72x = 8,387.70 × 3,840.80
4. Step 4: Simplify right side
   6,080.72x = 32,215,478.16
5. Step 5: Solve for x
   x = 32,215,478.16/6,080.72
6. Step 6: Final answer
   x = 5,297.97