Finding the Fourth Proportional to 4,648.05, 6,406.29 and 3,155.22

Step by Step Solution

1. Step 1: Write the proportion equation
   4,648.05 : 6,406.29 = 3,155.22 : x
2. Step 2: Convert to fraction form
   4,648.05/6,406.29 = 3,155.22/x
3. Step 3: Cross multiply
   4,648.05x = 6,406.29 × 3,155.22
4. Step 4: Simplify right side
   4,648.05x = 20,213,254.33
5. Step 5: Solve for x
   x = 20,213,254.33/4,648.05
6. Step 6: Final answer
   x = 4,348.76