Finding the Fourth Proportional to 23,711.07, 32,721.30 and 13,100.79

Step by Step Solution

1. Step 1: Write the proportion equation
   23,711.07 : 32,721.30 = 13,100.79 : x
2. Step 2: Convert to fraction form
   23,711.07/32,721.30 = 13,100.79/x
3. Step 3: Cross multiply
   23,711.07x = 32,721.30 × 13,100.79
4. Step 4: Simplify right side
   23,711.07x = 428,674,879.83
5. Step 5: Solve for x
   x = 428,674,879.83/23,711.07
6. Step 6: Final answer
   x = 18,079.10