Finding the Fourth Proportional to 10,874.68, 16,309.35 and 3,477.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,874.68 : 16,309.35 = 3,477.60 : x
2. Step 2: Convert to fraction form
   10,874.68/16,309.35 = 3,477.60/x
3. Step 3: Cross multiply
   10,874.68x = 16,309.35 × 3,477.60
4. Step 4: Simplify right side
   10,874.68x = 56,717,469.76
5. Step 5: Solve for x
   x = 56,717,469.76/10,874.68
6. Step 6: Final answer
   x = 5,215.55