Finding the Fourth Proportional to 10,387.88, 15,572.57 and 3,812.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,387.88 : 15,572.57 = 3,812.54 : x
2. Step 2: Convert to fraction form
   10,387.88/15,572.57 = 3,812.54/x
3. Step 3: Cross multiply
   10,387.88x = 15,572.57 × 3,812.54
4. Step 4: Simplify right side
   10,387.88x = 59,371,046.03
5. Step 5: Solve for x
   x = 59,371,046.03/10,387.88
6. Step 6: Final answer
   x = 5,715.42