Finding the Fourth Proportional to 16,389.42, 24,587.34 and 5,298.90

Step by Step Solution

1. Step 1: Write the proportion equation
   16,389.42 : 24,587.34 = 5,298.90 : x
2. Step 2: Convert to fraction form
   16,389.42/24,587.34 = 5,298.90/x
3. Step 3: Cross multiply
   16,389.42x = 24,587.34 × 5,298.90
4. Step 4: Simplify right side
   16,389.42x = 130,285,855.93
5. Step 5: Solve for x
   x = 130,285,855.93/16,389.42
6. Step 6: Final answer
   x = 7,949.39