Finding the Fourth Proportional to 25,857.12, 38,784.72 and 8,327.04

Step by Step Solution

1. Step 1: Write the proportion equation
   25,857.12 : 38,784.72 = 8,327.04 : x
2. Step 2: Convert to fraction form
   25,857.12/38,784.72 = 8,327.04/x
3. Step 3: Cross multiply
   25,857.12x = 38,784.72 × 8,327.04
4. Step 4: Simplify right side
   25,857.12x = 322,961,914.83
5. Step 5: Solve for x
   x = 322,961,914.83/25,857.12
6. Step 6: Final answer
   x = 12,490.25