Finding the Fourth Proportional to 12,095.42, 18,139.29 and 3,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,095.42 : 18,139.29 = 3,885.50 : x
2. Step 2: Convert to fraction form
   12,095.42/18,139.29 = 3,885.50/x
3. Step 3: Cross multiply
   12,095.42x = 18,139.29 × 3,885.50
4. Step 4: Simplify right side
   12,095.42x = 70,480,211.30
5. Step 5: Solve for x
   x = 70,480,211.30/12,095.42
6. Step 6: Final answer
   x = 5,827.02