Finding the Fourth Proportional to 7,043.09, 9,719.48 and 3,899.27

Step by Step Solution

1. Step 1: Write the proportion equation
   7,043.09 : 9,719.48 = 3,899.27 : x
2. Step 2: Convert to fraction form
   7,043.09/9,719.48 = 3,899.27/x
3. Step 3: Cross multiply
   7,043.09x = 9,719.48 × 3,899.27
4. Step 4: Simplify right side
   7,043.09x = 37,898,910.83
5. Step 5: Solve for x
   x = 37,898,910.83/7,043.09
6. Step 6: Final answer
   x = 5,381.01