Finding the Fourth Proportional to 7,196.70, 10,801.80 and 3,689.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.70 : 10,801.80 = 3,689.31 : x
2. Step 2: Convert to fraction form
   7,196.70/10,801.80 = 3,689.31/x
3. Step 3: Cross multiply
   7,196.70x = 10,801.80 × 3,689.31
4. Step 4: Simplify right side
   7,196.70x = 39,851,188.76
5. Step 5: Solve for x
   x = 39,851,188.76/7,196.70
6. Step 6: Final answer
   x = 5,537.43