Finding the Fourth Proportional to 25,215.30, 37,814.82 and 8,345.16

Step by Step Solution

1. Step 1: Write the proportion equation
   25,215.30 : 37,814.82 = 8,345.16 : x
2. Step 2: Convert to fraction form
   25,215.30/37,814.82 = 8,345.16/x
3. Step 3: Cross multiply
   25,215.30x = 37,814.82 × 8,345.16
4. Step 4: Simplify right side
   25,215.30x = 315,570,723.27
5. Step 5: Solve for x
   x = 315,570,723.27/25,215.30
6. Step 6: Final answer
   x = 12,515.05