Finding the Fourth Proportional to 16,387.78, 24,576.42 and 5,292.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,387.78 : 24,576.42 = 5,292.10 : x
2. Step 2: Convert to fraction form
   16,387.78/24,576.42 = 5,292.10/x
3. Step 3: Cross multiply
   16,387.78x = 24,576.42 × 5,292.10
4. Step 4: Simplify right side
   16,387.78x = 130,060,872.28
5. Step 5: Solve for x
   x = 130,060,872.28/16,387.78
6. Step 6: Final answer
   x = 7,936.45