Finding the Fourth Proportional to 7,438.71, 10,265.31 and 4,081.53

Step by Step Solution

1. Step 1: Write the proportion equation
   7,438.71 : 10,265.31 = 4,081.53 : x
2. Step 2: Convert to fraction form
   7,438.71/10,265.31 = 4,081.53/x
3. Step 3: Cross multiply
   7,438.71x = 10,265.31 × 4,081.53
4. Step 4: Simplify right side
   7,438.71x = 41,898,170.72
5. Step 5: Solve for x
   x = 41,898,170.72/7,438.71
6. Step 6: Final answer
   x = 5,632.45