Finding the Fourth Proportional to 12,058.67, 18,085.15 and 3,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,058.67 : 18,085.15 = 3,291.50 : x
2. Step 2: Convert to fraction form
   12,058.67/18,085.15 = 3,291.50/x
3. Step 3: Cross multiply
   12,058.67x = 18,085.15 × 3,291.50
4. Step 4: Simplify right side
   12,058.67x = 59,527,271.23
5. Step 5: Solve for x
   x = 59,527,271.23/12,058.67
6. Step 6: Final answer
   x = 4,936.47