Finding the Fourth Proportional to 6,131.21, 8,462.01 and 3,478.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,131.21 : 8,462.01 = 3,478.05 : x
2. Step 2: Convert to fraction form
   6,131.21/8,462.01 = 3,478.05/x
3. Step 3: Cross multiply
   6,131.21x = 8,462.01 × 3,478.05
4. Step 4: Simplify right side
   6,131.21x = 29,431,293.88
5. Step 5: Solve for x
   x = 29,431,293.88/6,131.21
6. Step 6: Final answer
   x = 4,800.24