Finding the Fourth Proportional to 7,275.67, 10,039.72 and 4,131.25

Step by Step Solution

1. Step 1: Write the proportion equation
   7,275.67 : 10,039.72 = 4,131.25 : x
2. Step 2: Convert to fraction form
   7,275.67/10,039.72 = 4,131.25/x
3. Step 3: Cross multiply
   7,275.67x = 10,039.72 × 4,131.25
4. Step 4: Simplify right side
   7,275.67x = 41,476,593.25
5. Step 5: Solve for x
   x = 41,476,593.25/7,275.67
6. Step 6: Final answer
   x = 5,700.72