Finding the Fourth Proportional to 16,340.42, 24,498.68 and 5,240.79

Step by Step Solution

1. Step 1: Write the proportion equation
   16,340.42 : 24,498.68 = 5,240.79 : x
2. Step 2: Convert to fraction form
   16,340.42/24,498.68 = 5,240.79/x
3. Step 3: Cross multiply
   16,340.42x = 24,498.68 × 5,240.79
4. Step 4: Simplify right side
   16,340.42x = 128,392,288.46
5. Step 5: Solve for x
   x = 128,392,288.46/16,340.42
6. Step 6: Final answer
   x = 7,857.35