Finding the Fourth Proportional to 11,238.39, 16,857.18 and 3,447

Step by Step Solution

1. Step 1: Write the proportion equation
   11,238.39 : 16,857.18 = 3,447 : x
2. Step 2: Convert to fraction form
   11,238.39/16,857.18 = 3,447/x
3. Step 3: Cross multiply
   11,238.39x = 16,857.18 × 3,447
4. Step 4: Simplify right side
   11,238.39x = 58,106,699.46
5. Step 5: Solve for x
   x = 58,106,699.46/11,238.39
6. Step 6: Final answer
   x = 5,170.38