Finding the Fourth Proportional to 11,405.46, 17,108.16 and 3,086.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,405.46 : 17,108.16 = 3,086.34 : x
2. Step 2: Convert to fraction form
   11,405.46/17,108.16 = 3,086.34/x
3. Step 3: Cross multiply
   11,405.46x = 17,108.16 × 3,086.34
4. Step 4: Simplify right side
   11,405.46x = 52,801,598.53
5. Step 5: Solve for x
   x = 52,801,598.53/11,405.46
6. Step 6: Final answer
   x = 4,629.50