Finding the Fourth Proportional to 23,710.57, 32,720.61 and 13,100.29

Step by Step Solution

1. Step 1: Write the proportion equation
   23,710.57 : 32,720.61 = 13,100.29 : x
2. Step 2: Convert to fraction form
   23,710.57/32,720.61 = 13,100.29/x
3. Step 3: Cross multiply
   23,710.57x = 32,720.61 × 13,100.29
4. Step 4: Simplify right side
   23,710.57x = 428,649,479.98
5. Step 5: Solve for x
   x = 428,649,479.98/23,710.57
6. Step 6: Final answer
   x = 18,078.41