Finding the Fourth Proportional to 12,058.53, 18,085.42 and 3,291.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,058.53 : 18,085.42 = 3,291.36 : x
2. Step 2: Convert to fraction form
   12,058.53/18,085.42 = 3,291.36/x
3. Step 3: Cross multiply
   12,058.53x = 18,085.42 × 3,291.36
4. Step 4: Simplify right side
   12,058.53x = 59,525,627.97
5. Step 5: Solve for x
   x = 59,525,627.97/12,058.53
6. Step 6: Final answer
   x = 4,936.39