Finding the Fourth Proportional to 7,326, 10,109.27 and 4,139.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,326 : 10,109.27 = 4,139.57 : x
2. Step 2: Convert to fraction form
   7,326/10,109.27 = 4,139.57/x
3. Step 3: Cross multiply
   7,326x = 10,109.27 × 4,139.57
4. Step 4: Simplify right side
   7,326x = 41,848,030.81
5. Step 5: Solve for x
   x = 41,848,030.81/7,326
6. Step 6: Final answer
   x = 5,712.26