Finding the Fourth Proportional to 7,043.22, 9,719.82 and 3,899.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,043.22 : 9,719.82 = 3,899.52 : x
2. Step 2: Convert to fraction form
   7,043.22/9,719.82 = 3,899.52/x
3. Step 3: Cross multiply
   7,043.22x = 9,719.82 × 3,899.52
4. Step 4: Simplify right side
   7,043.22x = 37,902,632.49
5. Step 5: Solve for x
   x = 37,902,632.49/7,043.22
6. Step 6: Final answer
   x = 5,381.44