Finding the Fourth Proportional to 10,394.47, 15,581.98 and 3,818.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,394.47 : 15,581.98 = 3,818.89 : x
2. Step 2: Convert to fraction form
   10,394.47/15,581.98 = 3,818.89/x
3. Step 3: Cross multiply
   10,394.47x = 15,581.98 × 3,818.89
4. Step 4: Simplify right side
   10,394.47x = 59,505,780.15
5. Step 5: Solve for x
   x = 59,505,780.15/10,394.47
6. Step 6: Final answer
   x = 5,724.76