Finding the Fourth Proportional to 10,443.74, 15,669.04 and 3,870.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.74 : 15,669.04 = 3,870.42 : x
2. Step 2: Convert to fraction form
   10,443.74/15,669.04 = 3,870.42/x
3. Step 3: Cross multiply
   10,443.74x = 15,669.04 × 3,870.42
4. Step 4: Simplify right side
   10,443.74x = 60,645,765.80
5. Step 5: Solve for x
   x = 60,645,765.80/10,443.74
6. Step 6: Final answer
   x = 5,806.90