Finding the Fourth Proportional to 16,490.78, 24,740.04 and 5,397.42

Step by Step Solution

1. Step 1: Write the proportion equation
   16,490.78 : 24,740.04 = 5,397.42 : x
2. Step 2: Convert to fraction form
   16,490.78/24,740.04 = 5,397.42/x
3. Step 3: Cross multiply
   16,490.78x = 24,740.04 × 5,397.42
4. Step 4: Simplify right side
   16,490.78x = 133,532,386.70
5. Step 5: Solve for x
   x = 133,532,386.70/16,490.78
6. Step 6: Final answer
   x = 8,097.40