Finding the Fourth Proportional to 23,715.90, 32,726.28 and 13,105.92

Step by Step Solution

1. Step 1: Write the proportion equation
   23,715.90 : 32,726.28 = 13,105.92 : x
2. Step 2: Convert to fraction form
   23,715.90/32,726.28 = 13,105.92/x
3. Step 3: Cross multiply
   23,715.90x = 32,726.28 × 13,105.92
4. Step 4: Simplify right side
   23,715.90x = 428,908,007.58
5. Step 5: Solve for x
   x = 428,908,007.58/23,715.90
6. Step 6: Final answer
   x = 18,085.25