Finding the Fourth Proportional to 16,726.61, 23,085.06 and 10,355.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,726.61 : 23,085.06 = 10,355.23 : x
2. Step 2: Convert to fraction form
   16,726.61/23,085.06 = 10,355.23/x
3. Step 3: Cross multiply
   16,726.61x = 23,085.06 × 10,355.23
4. Step 4: Simplify right side
   16,726.61x = 239,051,105.86
5. Step 5: Solve for x
   x = 239,051,105.86/16,726.61
6. Step 6: Final answer
   x = 14,291.66