Finding the Fourth Proportional to 10,399.59, 15,601.84 and 3,379.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,399.59 : 15,601.84 = 3,379.61 : x
2. Step 2: Convert to fraction form
   10,399.59/15,601.84 = 3,379.61/x
3. Step 3: Cross multiply
   10,399.59x = 15,601.84 × 3,379.61
4. Step 4: Simplify right side
   10,399.59x = 52,728,165.04
5. Step 5: Solve for x
   x = 52,728,165.04/10,399.59
6. Step 6: Final answer
   x = 5,070.22