Finding the Fourth Proportional to 7,324.72, 10,109.00 and 4,138.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,324.72 : 10,109.00 = 4,138.15 : x
2. Step 2: Convert to fraction form
   7,324.72/10,109.00 = 4,138.15/x
3. Step 3: Cross multiply
   7,324.72x = 10,109.00 × 4,138.15
4. Step 4: Simplify right side
   7,324.72x = 41,832,487.11
5. Step 5: Solve for x
   x = 41,832,487.11/7,324.72
6. Step 6: Final answer
   x = 5,711.14