Finding the Fourth Proportional to 21,606.25, 32,387.18 and 8,276.12

Step by Step Solution

1. Step 1: Write the proportion equation
   21,606.25 : 32,387.18 = 8,276.12 : x
2. Step 2: Convert to fraction form
   21,606.25/32,387.18 = 8,276.12/x
3. Step 3: Cross multiply
   21,606.25x = 32,387.18 × 8,276.12
4. Step 4: Simplify right side
   21,606.25x = 268,039,984.83
5. Step 5: Solve for x
   x = 268,039,984.83/21,606.25
6. Step 6: Final answer
   x = 12,405.67