Finding the Fourth Proportional to 12,635.25, 18,957.06 and 3,870.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,635.25 : 18,957.06 = 3,870.24 : x
2. Step 2: Convert to fraction form
   12,635.25/18,957.06 = 3,870.24/x
3. Step 3: Cross multiply
   12,635.25x = 18,957.06 × 3,870.24
4. Step 4: Simplify right side
   12,635.25x = 73,368,371.89
5. Step 5: Solve for x
   x = 73,368,371.89/12,635.25
6. Step 6: Final answer
   x = 5,806.64