Finding the Fourth Proportional to 10,429.53, 15,641.55 and 3,857.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,429.53 : 15,641.55 = 3,857.59 : x
2. Step 2: Convert to fraction form
   10,429.53/15,641.55 = 3,857.59/x
3. Step 3: Cross multiply
   10,429.53x = 15,641.55 × 3,857.59
4. Step 4: Simplify right side
   10,429.53x = 60,338,686.86
5. Step 5: Solve for x
   x = 60,338,686.86/10,429.53
6. Step 6: Final answer
   x = 5,785.37