Finding the Fourth Proportional to 10,740.78, 16,117.55 and 5,810.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,740.78 : 16,117.55 = 5,810.31 : x
2. Step 2: Convert to fraction form
   10,740.78/16,117.55 = 5,810.31/x
3. Step 3: Cross multiply
   10,740.78x = 16,117.55 × 5,810.31
4. Step 4: Simplify right side
   10,740.78x = 93,647,932.89
5. Step 5: Solve for x
   x = 93,647,932.89/10,740.78
6. Step 6: Final answer
   x = 8,718.91