Finding the Fourth Proportional to 23,192.64, 32,004.72 and 13,118.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,192.64 : 32,004.72 = 13,118.40 : x
2. Step 2: Convert to fraction form
   23,192.64/32,004.72 = 13,118.40/x
3. Step 3: Cross multiply
   23,192.64x = 32,004.72 × 13,118.40
4. Step 4: Simplify right side
   23,192.64x = 419,850,718.85
5. Step 5: Solve for x
   x = 419,850,718.85/23,192.64
6. Step 6: Final answer
   x = 18,102.76