Finding the Fourth Proportional to 23,150.42, 31,947.59 and 12,540.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,150.42 : 31,947.59 = 12,540.06 : x
2. Step 2: Convert to fraction form
   23,150.42/31,947.59 = 12,540.06/x
3. Step 3: Cross multiply
   23,150.42x = 31,947.59 × 12,540.06
4. Step 4: Simplify right side
   23,150.42x = 400,624,695.46
5. Step 5: Solve for x
   x = 400,624,695.46/23,150.42
6. Step 6: Final answer
   x = 17,305.29