Finding the Fourth Proportional to 23,166.29, 31,969.64 and 12,556.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,166.29 : 31,969.64 = 12,556.10 : x
2. Step 2: Convert to fraction form
   23,166.29/31,969.64 = 12,556.10/x
3. Step 3: Cross multiply
   23,166.29x = 31,969.64 × 12,556.10
4. Step 4: Simplify right side
   23,166.29x = 401,413,774.18
5. Step 5: Solve for x
   x = 401,413,774.18/23,166.29
6. Step 6: Final answer
   x = 17,327.50