Finding the Fourth Proportional to 7,815.27, 10,784.99 and 4,230.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,815.27 : 10,784.99 = 4,230.15 : x
2. Step 2: Convert to fraction form
   7,815.27/10,784.99 = 4,230.15/x
3. Step 3: Cross multiply
   7,815.27x = 10,784.99 × 4,230.15
4. Step 4: Simplify right side
   7,815.27x = 45,622,104.30
5. Step 5: Solve for x
   x = 45,622,104.30/7,815.27
6. Step 6: Final answer
   x = 5,837.56