Finding the Fourth Proportional to 7,275.18, 10,039.89 and 4,131.38

Step by Step Solution

1. Step 1: Write the proportion equation
   7,275.18 : 10,039.89 = 4,131.38 : x
2. Step 2: Convert to fraction form
   7,275.18/10,039.89 = 4,131.38/x
3. Step 3: Cross multiply
   7,275.18x = 10,039.89 × 4,131.38
4. Step 4: Simplify right side
   7,275.18x = 41,478,600.75
5. Step 5: Solve for x
   x = 41,478,600.75/7,275.18
6. Step 6: Final answer
   x = 5,701.38