Finding the Fourth Proportional to 10,955.79, 16,433.55 and 10,424.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,955.79 : 16,433.55 = 10,424.52 : x
2. Step 2: Convert to fraction form
   10,955.79/16,433.55 = 10,424.52/x
3. Step 3: Cross multiply
   10,955.79x = 16,433.55 × 10,424.52
4. Step 4: Simplify right side
   10,955.79x = 171,311,870.65
5. Step 5: Solve for x
   x = 171,311,870.65/10,955.79
6. Step 6: Final answer
   x = 15,636.65