Finding the Fourth Proportional to 23,825.94, 32,880.78 and 13,215.54

Step by Step Solution

1. Step 1: Write the proportion equation
   23,825.94 : 32,880.78 = 13,215.54 : x
2. Step 2: Convert to fraction form
   23,825.94/32,880.78 = 13,215.54/x
3. Step 3: Cross multiply
   23,825.94x = 32,880.78 × 13,215.54
4. Step 4: Simplify right side
   23,825.94x = 434,537,263.32
5. Step 5: Solve for x
   x = 434,537,263.32/23,825.94
6. Step 6: Final answer
   x = 18,237.99