Finding the Fourth Proportional to 10,387.34, 15,581.19 and 3,814.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,387.34 : 15,581.19 = 3,814.10 : x
2. Step 2: Convert to fraction form
   10,387.34/15,581.19 = 3,814.10/x
3. Step 3: Cross multiply
   10,387.34x = 15,581.19 × 3,814.10
4. Step 4: Simplify right side
   10,387.34x = 59,428,216.78
5. Step 5: Solve for x
   x = 59,428,216.78/10,387.34
6. Step 6: Final answer
   x = 5,721.22