Finding the Fourth Proportional to 23,158.13, 31,958.01 and 12,547.73

Step by Step Solution

1. Step 1: Write the proportion equation
   23,158.13 : 31,958.01 = 12,547.73 : x
2. Step 2: Convert to fraction form
   23,158.13/31,958.01 = 12,547.73/x
3. Step 3: Cross multiply
   23,158.13x = 31,958.01 × 12,547.73
4. Step 4: Simplify right side
   23,158.13x = 401,000,480.82
5. Step 5: Solve for x
   x = 401,000,480.82/23,158.13
6. Step 6: Final answer
   x = 17,315.75