Finding the Fourth Proportional to 10,438.04, 15,645.72 and 3,858.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,438.04 : 15,645.72 = 3,858.68 : x
2. Step 2: Convert to fraction form
   10,438.04/15,645.72 = 3,858.68/x
3. Step 3: Cross multiply
   10,438.04x = 15,645.72 × 3,858.68
4. Step 4: Simplify right side
   10,438.04x = 60,371,826.85
5. Step 5: Solve for x
   x = 60,371,826.85/10,438.04
6. Step 6: Final answer
   x = 5,783.83