Finding the Fourth Proportional to 23,166.42, 31,969.52 and 12,556.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,166.42 : 31,969.52 = 12,556.06 : x
2. Step 2: Convert to fraction form
   23,166.42/31,969.52 = 12,556.06/x
3. Step 3: Cross multiply
   23,166.42x = 31,969.52 × 12,556.06
4. Step 4: Simplify right side
   23,166.42x = 401,411,211.29
5. Step 5: Solve for x
   x = 401,411,211.29/23,166.42
6. Step 6: Final answer
   x = 17,327.29