Finding the Fourth Proportional to 16,238.96, 24,359.10 and 5,145.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,238.96 : 24,359.10 = 5,145.39 : x
2. Step 2: Convert to fraction form
   16,238.96/24,359.10 = 5,145.39/x
3. Step 3: Cross multiply
   16,238.96x = 24,359.10 × 5,145.39
4. Step 4: Simplify right side
   16,238.96x = 125,337,069.55
5. Step 5: Solve for x
   x = 125,337,069.55/16,238.96
6. Step 6: Final answer
   x = 7,718.30