Finding the Fourth Proportional to 10,436.76, 15,657.34 and 3,863

Step by Step Solution

1. Step 1: Write the proportion equation
   10,436.76 : 15,657.34 = 3,863 : x
2. Step 2: Convert to fraction form
   10,436.76/15,657.34 = 3,863/x
3. Step 3: Cross multiply
   10,436.76x = 15,657.34 × 3,863
4. Step 4: Simplify right side
   10,436.76x = 60,484,304.42
5. Step 5: Solve for x
   x = 60,484,304.42/10,436.76
6. Step 6: Final answer
   x = 5,795.31