Finding the Fourth Proportional to 10,443.87, 15,666.47 and 3,424.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.87 : 15,666.47 = 3,424.61 : x
2. Step 2: Convert to fraction form
   10,443.87/15,666.47 = 3,424.61/x
3. Step 3: Cross multiply
   10,443.87x = 15,666.47 × 3,424.61
4. Step 4: Simplify right side
   10,443.87x = 53,651,454.37
5. Step 5: Solve for x
   x = 53,651,454.37/10,443.87
6. Step 6: Final answer
   x = 5,137.12