Finding the Fourth Proportional to 10,791.63, 16,189.57 and 3,398.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,791.63 : 16,189.57 = 3,398.36 : x
2. Step 2: Convert to fraction form
   10,791.63/16,189.57 = 3,398.36/x
3. Step 3: Cross multiply
   10,791.63x = 16,189.57 × 3,398.36
4. Step 4: Simplify right side
   10,791.63x = 55,017,910.41
5. Step 5: Solve for x
   x = 55,017,910.41/10,791.63
6. Step 6: Final answer
   x = 5,098.20