Finding the Fourth Proportional to 10,429.32, 15,644.70 and 3,855.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,429.32 : 15,644.70 = 3,855.36 : x
2. Step 2: Convert to fraction form
   10,429.32/15,644.70 = 3,855.36/x
3. Step 3: Cross multiply
   10,429.32x = 15,644.70 × 3,855.36
4. Step 4: Simplify right side
   10,429.32x = 60,315,950.59
5. Step 5: Solve for x
   x = 60,315,950.59/10,429.32
6. Step 6: Final answer
   x = 5,783.31