Finding the Fourth Proportional to 10,386.29, 15,581.48 and 3,812.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,386.29 : 15,581.48 = 3,812.53 : x
2. Step 2: Convert to fraction form
   10,386.29/15,581.48 = 3,812.53/x
3. Step 3: Cross multiply
   10,386.29x = 15,581.48 × 3,812.53
4. Step 4: Simplify right side
   10,386.29x = 59,404,859.94
5. Step 5: Solve for x
   x = 59,404,859.94/10,386.29
6. Step 6: Final answer
   x = 5,719.55