Finding the Fourth Proportional to 23,469.11, 32,388.18 and 12,858.74

Step by Step Solution

1. Step 1: Write the proportion equation
   23,469.11 : 32,388.18 = 12,858.74 : x
2. Step 2: Convert to fraction form
   23,469.11/32,388.18 = 12,858.74/x
3. Step 3: Cross multiply
   23,469.11x = 32,388.18 × 12,858.74
4. Step 4: Simplify right side
   23,469.11x = 416,471,185.69
5. Step 5: Solve for x
   x = 416,471,185.69/23,469.11
6. Step 6: Final answer
   x = 17,745.50