Finding the Fourth Proportional to 23,116.41, 31,900.53 and 12,505.83

Step by Step Solution

1. Step 1: Write the proportion equation
   23,116.41 : 31,900.53 = 12,505.83 : x
2. Step 2: Convert to fraction form
   23,116.41/31,900.53 = 12,505.83/x
3. Step 3: Cross multiply
   23,116.41x = 31,900.53 × 12,505.83
4. Step 4: Simplify right side
   23,116.41x = 398,942,605.09
5. Step 5: Solve for x
   x = 398,942,605.09/23,116.41
6. Step 6: Final answer
   x = 17,257.98