Finding the Fourth Proportional to 23,485.54, 32,410.31 and 13,415.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,485.54 : 32,410.31 = 13,415.31 : x
2. Step 2: Convert to fraction form
   23,485.54/32,410.31 = 13,415.31/x
3. Step 3: Cross multiply
   23,485.54x = 32,410.31 × 13,415.31
4. Step 4: Simplify right side
   23,485.54x = 434,794,355.85
5. Step 5: Solve for x
   x = 434,794,355.85/23,485.54
6. Step 6: Final answer
   x = 18,513.28