Finding the Fourth Proportional to 23,116.32, 31,900.41 and 12,505.91

Step by Step Solution

1. Step 1: Write the proportion equation
   23,116.32 : 31,900.41 = 12,505.91 : x
2. Step 2: Convert to fraction form
   23,116.32/31,900.41 = 12,505.91/x
3. Step 3: Cross multiply
   23,116.32x = 31,900.41 × 12,505.91
4. Step 4: Simplify right side
   23,116.32x = 398,943,496.92
5. Step 5: Solve for x
   x = 398,943,496.92/23,116.32
6. Step 6: Final answer
   x = 17,258.09