Finding the Fourth Proportional to 10,754.78, 16,132.43 and 5,207.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,754.78 : 16,132.43 = 5,207.09 : x
2. Step 2: Convert to fraction form
   10,754.78/16,132.43 = 5,207.09/x
3. Step 3: Cross multiply
   10,754.78x = 16,132.43 × 5,207.09
4. Step 4: Simplify right side
   10,754.78x = 84,002,947.28
5. Step 5: Solve for x
   x = 84,002,947.28/10,754.78
6. Step 6: Final answer
   x = 7,810.76