Finding the Fourth Proportional to 23,167.91, 31,971.83 and 12,557.45

Step by Step Solution

1. Step 1: Write the proportion equation
   23,167.91 : 31,971.83 = 12,557.45 : x
2. Step 2: Convert to fraction form
   23,167.91/31,971.83 = 12,557.45/x
3. Step 3: Cross multiply
   23,167.91x = 31,971.83 × 12,557.45
4. Step 4: Simplify right side
   23,167.91x = 401,484,656.63
5. Step 5: Solve for x
   x = 401,484,656.63/23,167.91
6. Step 6: Final answer
   x = 17,329.34