Finding the Fourth Proportional to 10,450.46, 15,678.20 and 3,876.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,450.46 : 15,678.20 = 3,876.71 : x
2. Step 2: Convert to fraction form
   10,450.46/15,678.20 = 3,876.71/x
3. Step 3: Cross multiply
   10,450.46x = 15,678.20 × 3,876.71
4. Step 4: Simplify right side
   10,450.46x = 60,779,766.02
5. Step 5: Solve for x
   x = 60,779,766.02/10,450.46
6. Step 6: Final answer
   x = 5,815.99