Finding the Fourth Proportional to 16,997.09, 23,459.33 and 10,860.86

Step by Step Solution

1. Step 1: Write the proportion equation
   16,997.09 : 23,459.33 = 10,860.86 : x
2. Step 2: Convert to fraction form
   16,997.09/23,459.33 = 10,860.86/x
3. Step 3: Cross multiply
   16,997.09x = 23,459.33 × 10,860.86
4. Step 4: Simplify right side
   16,997.09x = 254,788,503.17
5. Step 5: Solve for x
   x = 254,788,503.17/16,997.09
6. Step 6: Final answer
   x = 14,990.13