Finding the Fourth Proportional to 8,022.50, 12,023.72 and 3,861.40

Step by Step Solution

1. Step 1: Write the proportion equation
   8,022.50 : 12,023.72 = 3,861.40 : x
2. Step 2: Convert to fraction form
   8,022.50/12,023.72 = 3,861.40/x
3. Step 3: Cross multiply
   8,022.50x = 12,023.72 × 3,861.40
4. Step 4: Simplify right side
   8,022.50x = 46,428,343.04
5. Step 5: Solve for x
   x = 46,428,343.04/8,022.50
6. Step 6: Final answer
   x = 5,787.26