Finding the Fourth Proportional to 7,043.34, 9,719.82 and 3,899.46

Step by Step Solution

1. Step 1: Write the proportion equation
   7,043.34 : 9,719.82 = 3,899.46 : x
2. Step 2: Convert to fraction form
   7,043.34/9,719.82 = 3,899.46/x
3. Step 3: Cross multiply
   7,043.34x = 9,719.82 × 3,899.46
4. Step 4: Simplify right side
   7,043.34x = 37,902,049.30
5. Step 5: Solve for x
   x = 37,902,049.30/7,043.34
6. Step 6: Final answer
   x = 5,381.26