Finding the Fourth Proportional to 12,182.88, 18,271.55 and 3,861.35

Step by Step Solution

1. Step 1: Write the proportion equation
   12,182.88 : 18,271.55 = 3,861.35 : x
2. Step 2: Convert to fraction form
   12,182.88/18,271.55 = 3,861.35/x
3. Step 3: Cross multiply
   12,182.88x = 18,271.55 × 3,861.35
4. Step 4: Simplify right side
   12,182.88x = 70,552,774.16
5. Step 5: Solve for x
   x = 70,552,774.16/12,182.88
6. Step 6: Final answer
   x = 5,791.14