Finding the Fourth Proportional to 16,860.15, 23,259.56 and 10,141.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,860.15 : 23,259.56 = 10,141.91 : x
2. Step 2: Convert to fraction form
   16,860.15/23,259.56 = 10,141.91/x
3. Step 3: Cross multiply
   16,860.15x = 23,259.56 × 10,141.91
4. Step 4: Simplify right side
   16,860.15x = 235,896,284.38
5. Step 5: Solve for x
   x = 235,896,284.38/16,860.15
6. Step 6: Final answer
   x = 13,991.35