Finding the Fourth Proportional to 10,743.94, 16,100.79 and 8,542.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,743.94 : 16,100.79 = 8,542.90 : x
2. Step 2: Convert to fraction form
   10,743.94/16,100.79 = 8,542.90/x
3. Step 3: Cross multiply
   10,743.94x = 16,100.79 × 8,542.90
4. Step 4: Simplify right side
   10,743.94x = 137,547,438.89
5. Step 5: Solve for x
   x = 137,547,438.89/10,743.94
6. Step 6: Final answer
   x = 12,802.33