Finding the Fourth Proportional to 23,164.46, 31,966.10 and 12,553.87

Step by Step Solution

1. Step 1: Write the proportion equation
   23,164.46 : 31,966.10 = 12,553.87 : x
2. Step 2: Convert to fraction form
   23,164.46/31,966.10 = 12,553.87/x
3. Step 3: Cross multiply
   23,164.46x = 31,966.10 × 12,553.87
4. Step 4: Simplify right side
   23,164.46x = 401,298,215.28
5. Step 5: Solve for x
   x = 401,298,215.28/23,164.46
6. Step 6: Final answer
   x = 17,323.87